removed Inapproriate async declartion on native_value

Author: iluvdata

custom_components/liebherr/number.py

@@ -45,7 +45,7 @@ def __init__(
         self._attr_mode = NumberMode.SLIDER
 
     @property
-    async def native_value(self) -> float:
+    def native_value(self) -> float:
         """Light brightness."""
         return (
             self._control.target