ci: execute Cloud Run job automatically after deployment

This ensures that the groups URL database is brought up to date whenever we push new code, preventing outdated links and broken buttons.

Author: rozen03

.github/workflows/google-cloudrun-docker.yml

@@ -149,3 +149,6 @@ jobs:
               --http-method=POST \
               --oauth-service-account-email=${{ vars.GCP_SA_EMAIL }}
           fi
+
+      - name: Execute Cloud Run Job
+        run: gcloud run jobs execute ${{ env.JOB_NAME }} --region ${{ env.PROJECT_REGION }}