Update alek13/slack version.

ueslialmeida · ueslialmeida · commit 072b5a6444eb · 2022-09-30T10:29:42.000-03:00
diff --git a/composer.json b/composer.json
@@ -19,6 +19,6 @@
     }
   },
   "require": {
-    "alek13/slack": "^2.0"
+    "alek13/slack": "^2.2.1"
   }
 }
