Switch to PEP-604 syntax in python2 stubs (#5915)

Signed-off-by: oleg.hoefling <oleg.hoefling@gmail.com>

stdlib/@python2/shutil.pyi

@@ -1,5 +1,5 @@
 from _typeshed import SupportsRead, SupportsWrite
-from typing import Any, AnyStr, Callable, Iterable, List, Optional, Sequence, Set, Text, Tuple, Type, TypeVar, Union
+from typing import Any, AnyStr, Callable, Iterable, List, Sequence, Set, Text, Tuple, Type, TypeVar, Union
 
 _AnyStr = TypeVar("_AnyStr", str, unicode)
 _AnyPath = TypeVar("_AnyPath", str, unicode)
@@ -17,9 +17,9 @@ def copy(src: Text, dst: Text) -> _PathReturn: ...
 def copy2(src: Text, dst: Text) -> _PathReturn: ...
 def ignore_patterns(*patterns: Text) -> Callable[[Any, List[_AnyStr]], Set[_AnyStr]]: ...
 def copytree(
-    src: AnyStr, dst: AnyStr, symlinks: bool = ..., ignore: Union[None, Callable[[AnyStr, List[AnyStr]], Iterable[AnyStr]]] = ...
+    src: AnyStr, dst: AnyStr, symlinks: bool = ..., ignore: None | Callable[[AnyStr, List[AnyStr]], Iterable[AnyStr]] = ...
 ) -> _PathReturn: ...
-def rmtree(path: _AnyPath, ignore_errors: bool = ..., onerror: Optional[Callable[[Any, _AnyPath, Any], Any]] = ...) -> None: ...
+def rmtree(path: _AnyPath, ignore_errors: bool = ..., onerror: Callable[[Any, _AnyPath, Any], Any] | None = ...) -> None: ...
 
 _CopyFn = Union[Callable[[str, str], None], Callable[[Text, Text], None]]
 
@@ -27,19 +27,19 @@ def move(src: Text, dst: Text) -> _PathReturn: ...
 def make_archive(
     base_name: _AnyStr,
     format: str,
-    root_dir: Optional[Text] = ...,
-    base_dir: Optional[Text] = ...,
+    root_dir: Text | None = ...,
+    base_dir: Text | None = ...,
     verbose: bool = ...,
     dry_run: bool = ...,
-    owner: Optional[str] = ...,
-    group: Optional[str] = ...,
-    logger: Optional[Any] = ...,
+    owner: str | None = ...,
+    group: str | None = ...,
+    logger: Any | None = ...,
 ) -> _AnyStr: ...
 def get_archive_formats() -> List[Tuple[str, str]]: ...
 def register_archive_format(
     name: str,
     function: Callable[..., Any],
-    extra_args: Optional[Sequence[Union[Tuple[str, Any], List[Any]]]] = ...,
+    extra_args: Sequence[Tuple[str, Any] | List[Any]] | None = ...,
     description: str = ...,
 ) -> None: ...
 def unregister_archive_format(name: str) -> None: ...