fix: skip waiting when no workflows are running

Author: andhreljaKern

gh/db_migration_wait.sh

@@ -31,4 +31,10 @@ RUNNING_DB_UPGRADE_WORKFLOW_ID=$(gh run list \
 #         sleep 5
 #     fi
 # done
-gh run watch $RUNNING_DB_UPGRADE_WORKFLOW_ID --repo code-kern-ai/refinery-gateway
+if [ -z $RUNNING_DB_UPGRADE_WORKFLOW_ID ]; then
+    echo "::notice::No running db upgrade workflow found"
+    exit 0
+fi
+
+gh run watch $RUNNING_DB_UPGRADE_WORKFLOW_ID --repo code-kern-ai/refinery-gateway
+echo "::notice::Running db upgrade workflow completed"