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/services/recommend_app/database/database_retrieval.py

@@ -1,5 +1,3 @@
-from typing import Optional
-
 from sqlalchemy import select
 
 from constants.languages import languages
@@ -72,7 +70,7 @@ class DatabaseRecommendAppRetrieval(RecommendAppRetrievalBase):
         return {"recommended_apps": recommended_apps_result, "categories": sorted(categories)}
 
     @classmethod
-    def fetch_recommended_app_detail_from_db(cls, app_id: str) -> Optional[dict]:
+    def fetch_recommended_app_detail_from_db(cls, app_id: str) -> dict | None:
         """
         Fetch recommended app detail from db.
         :param app_id: App ID