Fix missing GChat notifications with workaround

This fix was suggested by GitHub Support as a workaround for a bug where
`failure()` is not working for reusable workflows that will be fixed in
a few months.

Closes gh-16423

.github/workflows/continuous-integration-workflow.yml

@@ -116,7 +116,7 @@ jobs:
   send-notification:
     name: Send Notification
     needs: [ perform-release ]
-    if: ${{ failure() || cancelled() }}
+    if: ${{ !success() }}
     runs-on: ubuntu-latest
     steps:
       - name: Send Notification