Use PEP 585 syntax wherever possible (#6717)

stubs/waitress/waitress/__init__.pyi

@@ -1,7 +1,7 @@
-from typing import Any, Tuple
+from typing import Any
 
 from waitress.server import create_server as create_server
 
 def serve(app: Any, **kw: Any) -> None: ...
 def serve_paste(app: Any, global_conf: Any, **kw: Any) -> int: ...
-def profile(cmd: Any, globals: Any, locals: Any, sort_order: Tuple[str, ...], callers: bool) -> None: ...
+def profile(cmd: Any, globals: Any, locals: Any, sort_order: tuple[str, ...], callers: bool) -> None: ...