Use PEP 604 syntax wherever possible (#7493)

stubs/paramiko/paramiko/common.pyi

@@ -1,5 +1,5 @@
 import sys
-from typing import Protocol, Union
+from typing import Protocol
 
 MSG_DISCONNECT: int
 MSG_IGNORE: int
@@ -109,7 +109,7 @@ else:
 class _SupportsAsBytes(Protocol):
     def asbytes(self) -> bytes: ...
 
-_LikeBytes = Union[bytes, str, _SupportsAsBytes]
+_LikeBytes = bytes | str | _SupportsAsBytes
 
 def asbytes(s: _LikeBytes) -> bytes: ...
 

stubs/paramiko/paramiko/transport.pyi

@@ -2,7 +2,7 @@ from logging import Logger
 from socket import socket
 from threading import Condition, Event, Lock, Thread
 from types import ModuleType
-from typing import Any, Callable, Iterable, Protocol, Sequence, Union
+from typing import Any, Callable, Iterable, Protocol, Sequence
 
 from paramiko.auth_handler import AuthHandler, _InteractiveCallback
 from paramiko.channel import Channel
@@ -15,7 +15,7 @@ from paramiko.ssh_gss import _SSH_GSSAuth
 from paramiko.util import ClosingContextManager
 
 _Addr = tuple[str, int]
-_SocketLike = Union[str, _Addr, socket, Channel]
+_SocketLike = str | _Addr | socket | Channel
 
 class _KexEngine(Protocol):
     def start_kex(self) -> None: ...