chore: upgrade code to python >=3.10

Author: jooola

hcloud/core/client.py

@@ -1,7 +1,8 @@
 from __future__ import annotations
 
 import warnings
-from typing import TYPE_CHECKING, Any, Callable, ClassVar
+from collections.abc import Callable
+from typing import TYPE_CHECKING, Any, ClassVar
 
 if TYPE_CHECKING:
     from .._client import Client, ClientBase

tests/unit/conftest.py

@@ -3,7 +3,8 @@
 from __future__ import annotations
 
 import inspect
-from typing import Callable, ClassVar, TypedDict
+from collections.abc import Callable
+from typing import ClassVar, TypedDict
 from unittest import mock
 
 import pytest