Stdlib: add container default values (#9909)

stdlib/typing_extensions.pyi

@@ -245,7 +245,7 @@ else:
         order_default: bool = False,
         kw_only_default: bool = False,
         frozen_default: bool = False,
-        field_specifiers: tuple[type[Any] | Callable[..., Any], ...] = ...,
+        field_specifiers: tuple[type[Any] | Callable[..., Any], ...] = (),
         **kwargs: object,
     ) -> IdentityFunction: ...