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/core/app/app_config/common/sensitive_word_avoidance/manager.py

@@ -1,12 +1,10 @@
-from typing import Optional
-
 from core.app.app_config.entities import SensitiveWordAvoidanceEntity
 from core.moderation.factory import ModerationFactory
 
 
 class SensitiveWordAvoidanceConfigManager:
     @classmethod
-    def convert(cls, config: dict) -> Optional[SensitiveWordAvoidanceEntity]:
+    def convert(cls, config: dict) -> SensitiveWordAvoidanceEntity | None:
         sensitive_word_avoidance_dict = config.get("sensitive_word_avoidance")
         if not sensitive_word_avoidance_dict:
             return None