Remove support for python <3.11 (#1273)

Python 3.11 ships with latest Debian Bookworm. 
pypy is not that widely used with this library based on statistics. It could be added back when pypy supports python 3.11.

kasa/protocols/iotprotocol.py

@@ -4,8 +4,9 @@ from __future__ import annotations
 
 import asyncio
 import logging
+from collections.abc import Callable
 from pprint import pformat as pf
-from typing import TYPE_CHECKING, Any, Callable
+from typing import TYPE_CHECKING, Any
 
 from ..deviceconfig import DeviceConfig
 from ..exceptions import (

kasa/protocols/protocol.py

@@ -17,10 +17,9 @@ import hashlib
 import logging
 import struct
 from abc import ABC, abstractmethod
-from typing import TYPE_CHECKING, Any, Callable, TypeVar, cast
+from collections.abc import Callable
+from typing import TYPE_CHECKING, Any, TypeVar, cast
 
-# When support for cpython older than 3.11 is dropped
-# async_timeout can be replaced with asyncio.timeout
 from ..deviceconfig import DeviceConfig
 
 _LOGGER = logging.getLogger(__name__)
@@ -36,7 +35,7 @@ if TYPE_CHECKING:
 
 def redact_data(data: _T, redactors: dict[str, Callable[[Any], Any] | None]) -> _T:
     """Redact sensitive data for logging."""
-    if not isinstance(data, (dict, list)):
+    if not isinstance(data, dict | list):
         return data
 
     if isinstance(data, list):

kasa/protocols/smartprotocol.py

@@ -11,8 +11,9 @@ import base64
 import logging
 import time
 import uuid
+from collections.abc import Callable
 from pprint import pformat as pf
-from typing import TYPE_CHECKING, Any, Callable
+from typing import TYPE_CHECKING, Any
 
 from ..exceptions import (
     SMART_AUTHENTICATION_ERRORS,