ci: enable go1.18 + upgrade golangci-lint to v1.45.0

.github/workflows/ci.yml

@@ -10,10 +10,10 @@ jobs:
   test:
     strategy:
       matrix:
-        go-version: [1.9.x, 1.10.x, 1.11.x, 1.12.x, 1.13.x, 1.14.x, 1.15.x, 1.16.x, tip]
+        go-version: [1.9.x, 1.10.x, 1.11.x, 1.12.x, 1.13.x, 1.14.x, 1.15.x, 1.16.x, 1.17.x, tip]
         full-tests: [false]
         include:
-          - go-version: 1.17.x
+          - go-version: 1.18.x
             full-tests: true
 
     runs-on: ubuntu-latest
@@ -31,7 +31,7 @@ jobs:
         if: matrix.full-tests
         run: |
           curl -sL https://raw.githubusercontent.com/golangci/golangci-lint/master/install.sh |
-              sh -s -- -b $HOME/go/bin v1.44.2
+              sh -s -- -b $HOME/go/bin v1.45.0
           $HOME/go/bin/golangci-lint run --max-issues-per-linter 0 \
                                          --max-same-issues 0 \
                                          -E bidichk \
@@ -71,5 +71,5 @@ jobs:
         env:
           COVERALLS_TOKEN: ${{ secrets.GITHUB_TOKEN }}
         run: |
-          go get github.com/mattn/goveralls
+          go install github.com/mattn/goveralls@v0.0.9
           goveralls -coverprofile=coverage.out -service=github

README.md

@@ -4,7 +4,7 @@ Easy mocking of http responses from external resources.
 
 ## Install
 
-Currently supports Go 1.9 - 1.17.
+Currently supports Go 1.9 - 1.18.
 
 `v1` branch has to be used instead of `master`.