use ruff linter and formatter

tests/typing/typing_app_decorators.py

@@ -1,7 +1,5 @@
 from __future__ import annotations
 
-import typing as t
-
 from flask import Flask
 from flask import Response
 
@@ -29,10 +27,10 @@ async def before_async() -> None:
 
 
 @app.teardown_appcontext
-def teardown_sync(exc: t.Optional[BaseException]) -> None:
+def teardown_sync(exc: BaseException | None) -> None:
     ...
 
 
 @app.teardown_appcontext
-async def teardown_async(exc: t.Optional[BaseException]) -> None:
+async def teardown_async(exc: BaseException | None) -> None:
     ...

tests/typing/typing_route.py

@@ -29,12 +29,12 @@ def hello_json() -> Response:
 
 
 @app.route("/json/dict")
-def hello_json_dict() -> t.Dict[str, t.Any]:
+def hello_json_dict() -> dict[str, t.Any]:
     return {"response": "Hello, World!"}
 
 
 @app.route("/json/dict")
-def hello_json_list() -> t.List[t.Any]:
+def hello_json_list() -> list[t.Any]:
     return [{"message": "Hello"}, {"message": "World"}]