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/tasks/clean_document_task.py

@@ -1,6 +1,5 @@
 import logging
 import time
-from typing import Optional
 
 import click
 from celery import shared_task
@@ -17,7 +16,7 @@ logger = logging.getLogger(__name__)
 
 
 @shared_task(queue="dataset")
-def clean_document_task(document_id: str, dataset_id: str, doc_form: str, file_id: Optional[str]):
+def clean_document_task(document_id: str, dataset_id: str, doc_form: str, file_id: str | None):
     """
     Clean document when document deleted.
     :param document_id: document id

api/tasks/create_segment_to_index_task.py

@@ -1,6 +1,5 @@
 import logging
 import time
-from typing import Optional
 
 import click
 from celery import shared_task
@@ -16,7 +15,7 @@ logger = logging.getLogger(__name__)
 
 
 @shared_task(queue="dataset")
-def create_segment_to_index_task(segment_id: str, keywords: Optional[list[str]] = None):
+def create_segment_to_index_task(segment_id: str, keywords: list[str] | None = None):
     """
     Async create segment to index
     :param segment_id: