Fix IDE warnings (#12281)

### What problem does this PR solve?

As title

### Type of change

- [x] Refactoring

---------

Signed-off-by: Jin Hai <haijin.chn@gmail.com>

rag/utils/gcs_conn.py

@@ -204,4 +204,4 @@ class RAGFlowGCS:
                 return False
         except Exception:
             logging.exception(f"Fail to move {src_bucket}/{src_path} -> {dest_bucket}/{dest_path}")
-            return False
+            return False