Bump github.com/slack-go/slack from 0.9.1 to 0.10.0 (#272)

Bumps [github.com/slack-go/slack](https://github.com/slack-go/slack) from 0.9.1 to 0.10.0.
- [Release notes](https://github.com/slack-go/slack/releases)
- [Changelog](https://github.com/slack-go/slack/blob/master/CHANGELOG.md)
- [Commits](slack-go/slack@v0.9.1...v0.10.0)

---
updated-dependencies:
- dependency-name: github.com/slack-go/slack
  dependency-type: direct:production
  update-type: version-update:semver-minor
...

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

Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

Author: dependabot[bot]

go.mod

@@ -23,7 +23,7 @@ require (
 	github.com/pkg/errors v0.9.1
 	github.com/prometheus/client_golang v1.11.0
 	github.com/shurcooL/githubv4 v0.0.0-20201206200315-234843c633fa
-	github.com/slack-go/slack v0.9.1
+	github.com/slack-go/slack v0.10.0
 	go.uber.org/zap v1.19.1
 	golang.org/x/oauth2 v0.0.0-20210514164344-f6687ab2804c
 	gopkg.in/h2non/gock.v1 v1.1.2

go.sum

@@ -410,8 +410,8 @@ github.com/sirupsen/logrus v1.2.0/go.mod h1:LxeOpSwHxABJmUn/MG1IvRgCAasNZTLOkJPx
 github.com/sirupsen/logrus v1.4.1/go.mod h1:ni0Sbl8bgC9z8RoU9G6nDWqqs/fq4eDPysMBDgk/93Q=
 github.com/sirupsen/logrus v1.4.2/go.mod h1:tLMulIdttU9McNUspp0xgXVQah82FyeX6MwdIuYE2rE=
 github.com/sirupsen/logrus v1.6.0/go.mod h1:7uNnSEd1DgxDLC74fIahvMZmmYsHGZGEOFrfsX/uA88=
-github.com/slack-go/slack v0.9.1 h1:pekQBs0RmrdAgoqzcMCzUCWSyIkhzUU3F83ExAdZrKo=
-github.com/slack-go/slack v0.9.1/go.mod h1:wWL//kk0ho+FcQXcBTmEafUI5dz4qz5f4mMk8oIkioQ=
+github.com/slack-go/slack v0.10.0 h1:L16Eqg3QZzRKGXIVsFSZdJdygjOphb2FjRUwH6VrFu8=
+github.com/slack-go/slack v0.10.0/go.mod h1:wWL//kk0ho+FcQXcBTmEafUI5dz4qz5f4mMk8oIkioQ=
 github.com/smartystreets/assertions v0.0.0-20180927180507-b2de0cb4f26d/go.mod h1:OnSkiWE9lh6wB0YB77sQom3nweQdgAjqCqsofrRNTgc=
 github.com/smartystreets/goconvey v1.6.4/go.mod h1:syvi0/a8iFYH4r/RixwvyeAJjdLS9QV7WQ/tjFTllLA=
 github.com/soheilhy/cmux v0.1.4/go.mod h1:IM3LyeVVIOuxMH7sFAkER9+bJ4dT7Ms6E4xg4kGIyLM=