Merge pull request #3 from ov1d1u/fix/import-error

Support both Python <= 3.10 and Python >= 3.11

Author: ov1d1u

components/opentherm/schema.py

@@ -1,7 +1,12 @@
 # This file contains a schema for all supported sensors, binary sensors and
 # inputs of the OpenTherm component.
 
-from typing import Dict, Generic, Tuple, TypeVar, TypedDict, NotRequired
+import sys
+from typing import Dict, Generic, Tuple, TypeVar, TypedDict
+if sys.version_info >= (3, 11):
+    from typing import NotRequired
+else:
+    from typing_extensions import NotRequired
 
 from esphome.const import (
     UNIT_CELSIUS,