Merge pull request #990 from increments/fix-github-action-version-by-hash

Fix github action version by hash

Author: atm-snag2

.github/workflows/notify_slack.yml

@@ -9,7 +9,7 @@ jobs:
     timeout-minutes: 5
     if: github.event.discussion && github.event.comment
     steps:
-      - uses: slackapi/slack-github-action@v2.0.0
+      - uses: slackapi/slack-github-action@485a9d42d3a73031f12ec201c457e2162c45d02d # v2.0.0
         with:
           method: chat.postMessage
           payload: |