fix: minimal failbot message

Author: lionello

.github/workflows/go.yml

@@ -391,6 +391,7 @@ jobs:
         working-directory: ./pkgs/npm
         env:
           NODE_AUTH_TOKEN: ${{ secrets.NODE_AUTH_TOKEN }}
+
   on-failure:
     runs-on: ubuntu-latest
     if: failure() && (github.ref == 'refs/heads/main' || startsWith(github.ref, 'refs/tags/v'))
@@ -400,6 +401,8 @@ jobs:
         uses: rtCamp/action-slack-notify@v2
         env:
           MSG_MINIMAL: actions url
-          SLACK_COLOR: error
+          SLACK_COLOR: failure
+          SLACK_FOOTER: ""
+          SLACK_MESSAGE: ""
           SLACK_TITLE: Defang CLI workflow failed
           SLACK_WEBHOOK: ${{ secrets.SLACK_NOTIFIER_WEBHOOK_URL }}