Fix ruff

Author: luolingchun

flask_openapi3/utils.py

@@ -7,7 +7,7 @@
 import sys
 from enum import Enum
 from http import HTTPStatus
-from typing import Dict, Type, Callable, List, Tuple, Optional, Any, DefaultDict, Union
+from typing import Type, Callable, Optional, Any, DefaultDict, Union
 from typing import get_args, get_origin, get_type_hints
 
 try: