fix(deps): update module github.com/slack-go/slack to v0.16.0 (#953)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

go.mod

@@ -23,7 +23,7 @@ require (
 	github.com/plivo/plivo-go/v7 v7.57.1
 	github.com/sendgrid/sendgrid-go v3.16.0+incompatible
 	github.com/silenceper/wechat/v2 v2.1.7
-	github.com/slack-go/slack v0.15.0
+	github.com/slack-go/slack v0.16.0
 	github.com/stretchr/testify v1.10.0
 	github.com/textmagic/textmagic-rest-go-v2/v2 v2.0.23575
 	github.com/utahta/go-linenotify v0.5.0

go.sum

@@ -313,8 +313,8 @@ github.com/silenceper/wechat/v2 v2.1.7/go.mod h1:7Iu3EhQYVtDUJAj+ZVRy8yom75ga7aD
 github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
 github.com/sirupsen/logrus v1.9.3 h1:dueUQJ1C2q9oE3F7wvmSGAaVtTmUizReu6fjN8uqzbQ=
 github.com/sirupsen/logrus v1.9.3/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
-github.com/slack-go/slack v0.15.0 h1:LE2lj2y9vqqiOf+qIIy0GvEoxgF1N5yLGZffmEZykt0=
-github.com/slack-go/slack v0.15.0/go.mod h1:hlGi5oXA+Gt+yWTPP0plCdRKmjsDxecdHxYQdlMQKOw=
+github.com/slack-go/slack v0.16.0 h1:khp/WCFv+Hb/B/AJaAwvcxKun0hM6grN0bUZ8xG60P8=
+github.com/slack-go/slack v0.16.0/go.mod h1:hlGi5oXA+Gt+yWTPP0plCdRKmjsDxecdHxYQdlMQKOw=
 github.com/sony/sonyflake v1.0.0 h1:MpU6Ro7tfXwgn2l5eluf9xQvQJDROTBImNCfRXn/YeM=
 github.com/sony/sonyflake v1.0.0/go.mod h1:Jv3cfhf/UFtolOTTRd3q4Nl6ENqM+KfyZ5PseKfZGF4=
 github.com/spf13/cast v1.4.1/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=