Bump github.com/slack-go/slack from 0.12.1 to 0.12.2

Bumps [github.com/slack-go/slack](https://github.com/slack-go/slack) from 0.12.1 to 0.12.2.
- [Release notes](https://github.com/slack-go/slack/releases)
- [Changelog](https://github.com/slack-go/slack/blob/master/CHANGELOG.md)
- [Commits](slack-go/slack@v0.12.1...v0.12.2)

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

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

go.mod

@@ -4,7 +4,7 @@ go 1.19
 
 require (
 	github.com/pelletier/go-toml/v2 v2.0.7
-	github.com/slack-go/slack v0.12.1
+	github.com/slack-go/slack v0.12.2
 )
 
 require github.com/gorilla/websocket v1.4.2 // indirect

go.sum

@@ -11,8 +11,8 @@ github.com/pelletier/go-toml/v2 v2.0.7 h1:muncTPStnKRos5dpVKULv2FVd4bMOhNePj9Cjg
 github.com/pelletier/go-toml/v2 v2.0.7/go.mod h1:eumQOmlWiOPt5WriQQqoM5y18pDHwha2N+QD+EUNTek=
 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 v0.12.1 h1:X97b9g2hnITDtNsNe5GkGx6O2/Sz/uC20ejRZN6QxOw=
-github.com/slack-go/slack v0.12.1/go.mod h1:hlGi5oXA+Gt+yWTPP0plCdRKmjsDxecdHxYQdlMQKOw=
+github.com/slack-go/slack v0.12.2 h1:x3OppyMyGIbbiyFhsBmpf9pwkUzMhthJMRNmNlA4LaQ=
+github.com/slack-go/slack v0.12.2/go.mod h1:hlGi5oXA+Gt+yWTPP0plCdRKmjsDxecdHxYQdlMQKOw=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.4.0/go.mod h1:YvHI0jy2hoMjB+UWwv71VJQ9isScKT/TqJzVSSt89Yw=
 github.com/stretchr/objx v0.5.0/go.mod h1:Yh+to48EsGEfYuaHDzXPcE3xhTkx73EhmCGUpEOglKo=