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/upstashvectordb.py

@@ -1,6 +1,5 @@
 import os
 from collections import UserDict
-from typing import Optional
 
 import pytest
 from _pytest.monkeypatch import MonkeyPatch
@@ -34,7 +33,7 @@ class MockIndex:
         include_vectors: bool = False,
         include_metadata: bool = False,
         filter: str = "",
-        data: Optional[str] = None,
+        data: str | None = None,
         namespace: str = "",
         include_data: bool = False,
     ):