chore: add ast-grep rule to convert Optional[T] to T | None (#25560)

Co-authored-by: autofix-ci[bot] <114827586+autofix-ci[bot]@users.noreply.github.com>

api/tests/integration_tests/vdb/__mock/baiduvectordb.py

@@ -1,6 +1,5 @@
 import os
 from collections import UserDict
-from typing import Optional
 from unittest.mock import MagicMock
 
 import pytest
@@ -22,7 +21,7 @@ class MockBaiduVectorDBClass:
     def mock_vector_db_client(
         self,
         config=None,
-        adapter: Optional[HTTPAdapter] = None,
+        adapter: HTTPAdapter | None = None,
     ):
         self.conn = MagicMock()
         self._config = MagicMock()