Revert "Update issue-manager.yml"

This reverts commit 4016556.

Author: YuriiMotov

.github/workflows/issue-manager.yml

@@ -1,8 +1,8 @@
 name: Issue Manager
 
 on:
-  # schedule:
-    # - cron: "13 18 * * *"
+  schedule:
+    - cron: "13 18 * * *"
   issue_comment:
     types:
       - created