go(deps): bump github.com/slack-go/slack from 0.13.0 to 0.13.1

Bumps [github.com/slack-go/slack](https://github.com/slack-go/slack) from 0.13.0 to 0.13.1.
- [Release notes](https://github.com/slack-go/slack/releases)
- [Changelog](https://github.com/slack-go/slack/blob/master/CHANGELOG.md)
- [Commits](slack-go/slack@v0.13.0...v0.13.1)

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

Signed-off-by: dependabot[bot] <[email protected]>

go.mod

@@ -5,7 +5,7 @@ go 1.17
 require (
 	github.com/dustin/go-humanize v1.0.1
 	github.com/google/go-cmp v0.6.0
-	github.com/slack-go/slack v0.13.0
+	github.com/slack-go/slack v0.13.1
 	golang.org/x/sys v0.22.0
 )
 

go.sum

@@ -11,8 +11,8 @@ github.com/gorilla/websocket v1.4.2 h1:+/TMaTYc4QFitKJxsQ7Yye35DkWvkdLcvGKqM+x0U
 github.com/gorilla/websocket v1.4.2/go.mod h1:YR8l580nyteQvAITg2hZ9XVh4b55+EU/adAjf1fMHhE=
 github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
-github.com/slack-go/slack v0.13.0 h1:7my/pR2ubZJ9912p9FtvALYpbt0cQPAqkRy2jaSI1PQ=
-github.com/slack-go/slack v0.13.0/go.mod h1:hlGi5oXA+Gt+yWTPP0plCdRKmjsDxecdHxYQdlMQKOw=
+github.com/slack-go/slack v0.13.1 h1:6UkM3U1OnbhPsYeb1IMkQ6HSNOSikWluwOncJt4Tz/o=
+github.com/slack-go/slack v0.13.1/go.mod h1:hlGi5oXA+Gt+yWTPP0plCdRKmjsDxecdHxYQdlMQKOw=
 github.com/stretchr/testify v1.2.2 h1:bSDNvY7ZPG5RlJ8otE/7V6gMiyenm9RtJ7IUVIAoJ1w=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 golang.org/x/sys v0.22.0 h1:RI27ohtqKCnwULzJLqkv897zojh5/DwS/ENaMzUOaWI=