Fix webhook url in the temporary manual finalizer

Signed-off-by: Soby Chacko <[email protected]>

Author: sobychacko

.github/workflows/manual-finalize-release.yml

@@ -18,4 +18,4 @@ jobs:
       milestone: ${{ inputs.milestone }}
     secrets:
       GH_ACTIONS_REPO_TOKEN: ${{ secrets.GH_ACTIONS_REPO_TOKEN }}
-      SPRING_RELEASE_SLACK_WEBHOOK_URL: ${{ secrets.SPRING_RELEASE_SLACK_WEBHOOK_URL }}
+      SPRING_RELEASE_CHAT_WEBHOOK_URL: ${{ secrets.SPRING_RELEASE_GCHAT_WEBHOOK_URL }}