fix(deps): update module github.com/slack-go/slack to v0.23.1 [security]

Author: renovate[bot]

go.mod

@@ -15,7 +15,7 @@ require (
 	github.com/robfig/cron/v3 v3.0.1
 	github.com/rs/xid v1.6.0
 	github.com/rs/zerolog v1.35.0
-	github.com/slack-go/slack v0.20.0
+	github.com/slack-go/slack v0.23.1
 	github.com/spf13/viper v1.21.0
 	google.golang.org/api v0.274.0
 )

go.sum

@@ -278,8 +278,8 @@ github.com/shurcooL/reactions v0.0.0-20181006231557-f2e0b4ca5b82/go.mod h1:TCR1l
 github.com/shurcooL/sanitized_anchor_name v0.0.0-20170918181015-86672fcb3f95/go.mod h1:1NzhyTcUVG4SuEtjjoZeVRXNmyL/1OwPU0+IJeTBvfc=
 github.com/shurcooL/users v0.0.0-20180125191416-49c67e49c537/go.mod h1:QJTqeLYEDaXHZDBsXlPCDqdhQuJkuw4NOtaxYe3xii4=
 github.com/shurcooL/webdavfs v0.0.0-20170829043945-18c3829fa133/go.mod h1:hKmq5kWdCj2z2KEozexVbfEZIWiTjhE0+UjmZgPqehw=
-github.com/slack-go/slack v0.20.0 h1:gbDdbee8+Z2o+DWx05Spq3GzbrLLleiRwHUKs+hZLSU=
-github.com/slack-go/slack v0.20.0/go.mod h1:K81UmCivcYd/5Jmz8vLBfuyoZ3B4rQC2GHVXHteXiAE=
+github.com/slack-go/slack v0.23.1 h1:ZS5B96wxxYQRwvJ3/vJFtqtUZi3tXhsZCyT44Nv7M80=
+github.com/slack-go/slack v0.23.1/go.mod h1:H0yR/YBuRJ39RkE+JpV/d/oEsbanzTRowR82bCN0cEs=
 github.com/sourcegraph/annotate v0.0.0-20160123013949-f4cad6c6324d/go.mod h1:UdhH50NIW0fCiwBSr0co2m7BnFLdv4fQTgdqdJTHFeE=
 github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8 h1:+jumHNA0Wrelhe64i8F6HNlS8pkoyMv5sreGx2Ry5Rw=
 github.com/sourcegraph/conc v0.3.1-0.20240121214520-5f936abd7ae8/go.mod h1:3n1Cwaq1E1/1lhQhtRK2ts/ZwZEhjcQeJQ1RuC6Q/8U=