Bump github.com/mackerelio/go-mackerel-plugin from 0.1.3 to 0.1.4

Bumps [github.com/mackerelio/go-mackerel-plugin](https://github.com/mackerelio/go-mackerel-plugin) from 0.1.3 to 0.1.4.
- [Release notes](https://github.com/mackerelio/go-mackerel-plugin/releases)
- [Commits](mackerelio/go-mackerel-plugin@v0.1.3...v0.1.4)

---
updated-dependencies:
- dependency-name: github.com/mackerelio/go-mackerel-plugin
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

Signed-off-by: dependabot[bot] <support@github.com>

go.mod

@@ -21,7 +21,7 @@ require (
 	github.com/jmoiron/sqlx v1.3.5
 	github.com/lestrrat-go/tcptest v0.0.0-20180223004312-f0345789c593
 	github.com/lib/pq v1.10.5
-	github.com/mackerelio/go-mackerel-plugin v0.1.3
+	github.com/mackerelio/go-mackerel-plugin v0.1.4
 	github.com/mackerelio/go-mackerel-plugin-helper v0.1.1
 	github.com/mackerelio/go-osstat v0.2.2
 	github.com/mackerelio/golib v1.2.1

go.sum

@@ -537,8 +537,8 @@ github.com/lib/pq v1.2.0/go.mod h1:5WUZQaWbwv1U+lTReE5YruASi9Al49XbQIvNi/34Woo=
 github.com/lib/pq v1.10.5 h1:J+gdV2cUmX7ZqL2B0lFcW0m+egaHC2V3lpO8nWxyYiQ=
 github.com/lib/pq v1.10.5/go.mod h1:AlVN5x4E4T544tWzH6hKfbfQvm3HdbOxrmggDNAPY9o=
 github.com/linuxkit/virtsock v0.0.0-20201010232012-f8cee7dfc7a3/go.mod h1:3r6x7q95whyfWQpmGZTu3gk3v2YkMi05HEzl7Tf7YEo=
-github.com/mackerelio/go-mackerel-plugin v0.1.3 h1:8dhkUUkVABPLxcMx0Wk3sje7Z/gA4tUom+1S/1Jl6ic=
-github.com/mackerelio/go-mackerel-plugin v0.1.3/go.mod h1:bau0bZbR1JXiCwDIg880djjttZ/0j885v5k0n+jAS/I=
+github.com/mackerelio/go-mackerel-plugin v0.1.4 h1:+kyatPMFSoghKd7o9oge1FnDrVknFbiwz5VWdFIgsqY=
+github.com/mackerelio/go-mackerel-plugin v0.1.4/go.mod h1:bau0bZbR1JXiCwDIg880djjttZ/0j885v5k0n+jAS/I=
 github.com/mackerelio/go-mackerel-plugin-helper v0.1.1 h1:OU/Gbr7sVA2tZxgjurQLXWed8DOU9Pf3ZnTvqeT/mEI=
 github.com/mackerelio/go-mackerel-plugin-helper v0.1.1/go.mod h1:B/n10G3NUumraiwSxLqyfoNuBNAwsOJ8coc12+pcO8E=
 github.com/mackerelio/go-osstat v0.2.2 h1:7jVyXGXTkQL3+6lDVUDBY+Fpo8VQPfyOkZeXxxsXX4c=