chore(governance): warn message on closed issues

Author: heitorlessa

Diff for: .github/workflows/on_closed_issues.yml

@@ -0,0 +1,12 @@
+name: Closed Issue Message
+on:
+    issues:
+        types: [closed]
+jobs:
+    auto_comment:
+        runs-on: ubuntu-latest
+        steps:
+            - uses: aws-actions/closed-issue-message@v1
+              with:
+                  repo-token: "${{ secrets.GITHUB_TOKEN }}"
+                  message: "Comments on closed issues are hard for our team to see."