Update Go, Kubernetes and other dependencies #582

##### ISSUE TYPE

 - Feature Pull Request

##### SUMMARY

- Update Go to 1.18
- Update Kubernetes-related dependencies to 0.24
- Update other dependencies (such as Slack, Mattermost and Discord clients, and also fsnotify, logrus, go-github....)
    - Use `github.com/slack-go/slack` (community-maintained fork of `nlopes/slack`) instead of `nlopes/slack`
- Use Alpine 3.15 as a base image
- ~Fix panic when a singleton Event is received~

Resolves #587

##### TESTING

I've already tested Slack, Mattermost, and Discord. Unfortunately, I couldn't test other integrations, but for the others I bumped them just to the latest minor versions (to not take any breaking changes).

You can use my Docker image `pkosiec/botkube:update-deps` which I've built with the following commands:

```
make container-image
docker tag ghcr.io/infracloudio/botkube:v9.99.9-dev-amd64 pkosiec/botkube:update-deps
docker push pkosiec/botkube:update-deps
```

.github/workflows/artifacts.yml

@@ -17,7 +17,7 @@ jobs:
     - name: Setup Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.16
+        go-version: 1.18
     - name: Set up QEMU
       uses: docker/setup-qemu-action@v1
     - name: Docker Login

.github/workflows/ci.yml

@@ -15,10 +15,10 @@ jobs:
     - name: Setup Go
       uses: actions/setup-go@v2
       with:
-        go-version: 1.16
+        go-version: 1.18
     - name: Install golint
       run: |
-        go get -u golang.org/x/lint/golint
+        go install golang.org/x/lint/golint@latest
     - name: Codespell action
       uses: sanketsudake/codespell-action@v1
     - name: Before build

CONTRIBUTING.md

@@ -16,7 +16,7 @@ Before you proceed, make sure you have installed BotKube Slack/Mattermost/Teams
 
 ### Prerequisite
 
-* Make sure you have `go 1.11+` installed with go module activated. (You can set env var with `export GO111MODULE=on` to activate)
+* Make sure you have [`go 1.18`](https://go.dev) installed.
 
 * You will also need `make` and [`docker`](https://docs.docker.com/install/) installed on your
 machine.

build/Dockerfile

@@ -17,7 +17,7 @@
 # IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 # CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 
-FROM alpine:3.14.3
+FROM alpine:3.15
 ARG botkube_version="dev"
 LABEL name="botkube" \
     version="${botkube_version}" \

go.mod

@@ -1,47 +1,140 @@
 module github.com/infracloudio/botkube
 
 require (
-	github.com/Masterminds/squirrel v1.1.0 // indirect
-	github.com/aws/aws-sdk-go v1.32.12
-	github.com/bwmarrin/discordgo v0.20.3
-	github.com/dyatlov/go-opengraph v0.0.0-20180429202543-816b6608b3c8 // indirect
-	github.com/fortytw2/leaktest v1.3.0 // indirect
-	github.com/fsnotify/fsnotify v1.4.9
-	github.com/go-ldap/ldap v3.0.3+incompatible // indirect
-	github.com/go-redis/redis v6.15.2+incompatible // indirect
-	github.com/gogo/protobuf v1.3.2 // indirect
-	github.com/google/go-github/v27 v27.0.4
-	github.com/hashicorp/golang-lru v0.5.3 // indirect
-	github.com/imdario/mergo v0.3.7 // indirect
+	github.com/aws/aws-sdk-go v1.44.17
+	github.com/bwmarrin/discordgo v0.25.0
+	github.com/fsnotify/fsnotify v1.5.4
+	github.com/google/go-github/v44 v44.1.0
 	github.com/infracloudio/msbotbuilder-go v0.2.5
-	github.com/larksuite/oapi-sdk-go v1.1.40-rc9
-	github.com/lib/pq v1.2.0 // indirect
-	github.com/mattermost/gorp v2.0.0+incompatible // indirect
-	github.com/mattermost/mattermost-server v5.11.1+incompatible
-	github.com/nicksnyder/go-i18n v1.10.1 // indirect
-	github.com/nlopes/slack v0.6.1-0.20191106133607-d06c2a2b3249
-	github.com/olivere/elastic v6.2.21+incompatible
-	github.com/pborman/uuid v1.2.0 // indirect
-	github.com/pelletier/go-toml v1.5.0 // indirect
-	github.com/prometheus/client_golang v1.7.1
+	github.com/larksuite/oapi-sdk-go v1.1.44
+	github.com/mattermost/mattermost-server/v5 v5.39.3
+	github.com/olivere/elastic v6.2.37+incompatible
+	github.com/prometheus/client_golang v1.12.2
 	github.com/sha1sum/aws_signing_client v0.0.0-20200229211254-f7815c59d5c1
-	github.com/sirupsen/logrus v1.7.0
-	github.com/stretchr/testify v1.7.0
-	go.uber.org/multierr v1.2.0 // indirect
+	github.com/sirupsen/logrus v1.8.1
+	github.com/slack-go/slack v0.10.3
+	github.com/stretchr/testify v1.7.1
+	gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b
+	k8s.io/api v0.24.0
+	k8s.io/apimachinery v0.24.0
+	k8s.io/client-go v0.24.0
+	k8s.io/kubectl v0.24.0
+	k8s.io/sample-controller v0.24.0
+)
+
+require (
+	github.com/Azure/go-ansiterm v0.0.0-20210617225240-d185dfc1b5a1 // indirect
+	github.com/MakeNowJust/heredoc v0.0.0-20170808103936-bb23615498cd // indirect
+	github.com/PuerkitoBio/purell v1.1.1 // indirect
+	github.com/PuerkitoBio/urlesc v0.0.0-20170810143723-de5bf2ad4578 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/blang/semver v3.5.1+incompatible // indirect
+	github.com/cespare/xxhash/v2 v2.1.2 // indirect
+	github.com/chai2010/gettext-go v0.0.0-20160711120539-c6fed771bfd5 // indirect
+	github.com/davecgh/go-spew v1.1.1 // indirect
+	github.com/decred/dcrd/dcrec/secp256k1/v3 v3.0.0 // indirect
+	github.com/dustin/go-humanize v1.0.0 // indirect
+	github.com/dyatlov/go-opengraph v0.0.0-20210112100619-dae8665a5b09 // indirect
+	github.com/emicklei/go-restful v2.9.5+incompatible // indirect
+	github.com/evanphx/json-patch v4.12.0+incompatible // indirect
+	github.com/exponent-io/jsonpath v0.0.0-20151013193312-d6023ce2651d // indirect
+	github.com/francoispqt/gojay v1.2.13 // indirect
+	github.com/fvbommel/sortorder v1.0.1 // indirect
+	github.com/go-asn1-ber/asn1-ber v1.5.3 // indirect
+	github.com/go-errors/errors v1.0.1 // indirect
+	github.com/go-logr/logr v1.2.0 // indirect
+	github.com/go-openapi/jsonpointer v0.19.5 // indirect
+	github.com/go-openapi/jsonreference v0.19.5 // indirect
+	github.com/go-openapi/swag v0.19.14 // indirect
+	github.com/goccy/go-json v0.4.8 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/golang-jwt/jwt/v4 v4.1.0 // indirect
+	github.com/golang/protobuf v1.5.2 // indirect
+	github.com/google/btree v1.0.1 // indirect
+	github.com/google/gnostic v0.5.7-v3refs // indirect
+	github.com/google/go-cmp v0.5.8 // indirect
+	github.com/google/go-querystring v1.1.0 // indirect
+	github.com/google/gofuzz v1.1.0 // indirect
+	github.com/google/shlex v0.0.0-20191202100458-e7afc7fbc510 // indirect
+	github.com/google/uuid v1.3.0 // indirect
+	github.com/gorilla/websocket v1.5.0 // indirect
+	github.com/gregjones/httpcache v0.0.0-20190611155906-901d90724c79 // indirect
+	github.com/hashicorp/errwrap v1.1.0 // indirect
+	github.com/hashicorp/go-multierror v1.1.1 // indirect
+	github.com/imdario/mergo v0.3.12 // indirect
+	github.com/inconshreveable/mousetrap v1.0.0 // indirect
+	github.com/jmespath/go-jmespath v0.4.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/klauspost/cpuid/v2 v2.0.6 // indirect
+	github.com/lestrrat-go/backoff/v2 v2.0.7 // indirect
+	github.com/lestrrat-go/blackmagic v1.0.0 // indirect
+	github.com/lestrrat-go/httpcc v1.0.0 // indirect
+	github.com/lestrrat-go/iter v1.0.1 // indirect
+	github.com/lestrrat-go/jwx v1.1.7 // indirect
+	github.com/lestrrat-go/option v1.0.0 // indirect
+	github.com/liggitt/tabwriter v0.0.0-20181228230101-89fcab3d43de // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/mattermost/go-i18n v1.11.0 // indirect
+	github.com/mattermost/ldap v0.0.0-20201202150706-ee0e6284187d // indirect
+	github.com/mattermost/logr v1.0.13 // indirect
+	github.com/matttproud/golang_protobuf_extensions v1.0.2-0.20181231171920-c182affec369 // indirect
+	github.com/minio/md5-simd v1.1.2 // indirect
+	github.com/minio/minio-go/v7 v7.0.11 // indirect
+	github.com/minio/sha256-simd v1.0.0 // indirect
+	github.com/mitchellh/go-homedir v1.1.0 // indirect
+	github.com/mitchellh/go-wordwrap v1.0.0 // indirect
+	github.com/moby/spdystream v0.2.0 // indirect
+	github.com/moby/term v0.0.0-20210619224110-3f7ff695adc6 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.2 // indirect
+	github.com/monochromegane/go-gitignore v0.0.0-20200626010858-205db1a8cc00 // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pborman/uuid v1.2.1 // indirect
+	github.com/pelletier/go-toml v1.9.4 // indirect
+	github.com/peterbourgon/diskv v2.0.1+incompatible // indirect
+	github.com/philhofer/fwd v1.1.1 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.0 // indirect
+	github.com/prometheus/client_model v0.2.0 // indirect
+	github.com/prometheus/common v0.33.0 // indirect
+	github.com/prometheus/procfs v0.7.3 // indirect
+	github.com/rs/xid v1.3.0 // indirect
+	github.com/russross/blackfriday v1.5.2 // indirect
+	github.com/spf13/cobra v1.4.0 // indirect
+	github.com/spf13/pflag v1.0.5 // indirect
+	github.com/tinylib/msgp v1.1.6 // indirect
+	github.com/wiggin77/cfg v1.0.2 // indirect
+	github.com/wiggin77/merror v1.0.3 // indirect
+	github.com/wiggin77/srslog v1.0.1 // indirect
+	github.com/xlab/treeprint v0.0.0-20181112141820-a009c3971eca // indirect
+	go.starlark.net v0.0.0-20200306205701-8dd3e2ee1dd5 // indirect
+	go.uber.org/atomic v1.8.0 // indirect
+	go.uber.org/multierr v1.7.0 // indirect
+	go.uber.org/zap v1.19.0 // indirect
 	golang.org/x/crypto v0.0.0-20220411220226-7b82a4e95df4 // indirect
-	golang.org/x/net v0.0.0-20211209124913-491a49abca63 // indirect
-	golang.org/x/oauth2 v0.0.0-20210819190943-2bc19b11175f // indirect
-	golang.org/x/sys v0.0.0-20211210111614-af8b64212486 // indirect
-	golang.org/x/term v0.0.0-20210503060354-a79de5458b56 // indirect
+	golang.org/x/net v0.0.0-20220403103023-749bd193bc2b // indirect
+	golang.org/x/oauth2 v0.0.0-20220223155221-ee480838109b // indirect
+	golang.org/x/sys v0.0.0-20220412211240-33da011f77ad // indirect
+	golang.org/x/term v0.0.0-20210927222741-03fcf44c2211 // indirect
 	golang.org/x/text v0.3.7 // indirect
-	gopkg.in/asn1-ber.v1 v1.0.0-20181015200546-f715ec2f112d // indirect
+	golang.org/x/time v0.0.0-20220210224613-90d013bbcef8 // indirect
+	google.golang.org/appengine v1.6.7 // indirect
+	google.golang.org/protobuf v1.28.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/ini.v1 v1.62.0 // indirect
 	gopkg.in/natefinch/lumberjack.v2 v2.0.0 // indirect
-	gopkg.in/yaml.v2 v2.4.0
-	k8s.io/api v0.20.5
-	k8s.io/apimachinery v0.20.5
-	k8s.io/client-go v0.20.5
-	k8s.io/kubectl v0.20.5
-	k8s.io/sample-controller v0.20.5
+	gopkg.in/yaml.v2 v2.4.0 // indirect
+	k8s.io/cli-runtime v0.24.0 // indirect
+	k8s.io/component-base v0.24.0 // indirect
+	k8s.io/klog/v2 v2.60.1 // indirect
+	k8s.io/kube-openapi v0.0.0-20220328201542-3ee0da9b0b42 // indirect
+	k8s.io/utils v0.0.0-20220210201930-3a6ce19ff2f9 // indirect
+	sigs.k8s.io/json v0.0.0-20211208200746-9f7c6b3444d2 // indirect
+	sigs.k8s.io/kustomize/api v0.11.4 // indirect
+	sigs.k8s.io/kustomize/kyaml v0.13.6 // indirect
+	sigs.k8s.io/structured-merge-diff/v4 v4.2.1 // indirect
+	sigs.k8s.io/yaml v1.2.0 // indirect
 )
 
-go 1.16
+go 1.18