fix: purifier default child lock state to none (#449)

Author: webdjoe

pyproject.toml

@@ -4,7 +4,7 @@ build-backend = "setuptools.build_meta"
 
 [project]
 name = "pyvesync"
-version = "3.2.1"
+version = "3.2.2"
 description = "pyvesync is a library to manage Etekcity Devices, Cosori Air Fryers, and Levoit Air Purifiers run on the VeSync app."
 readme = "README.md"
 requires-python = ">=3.11"

src/pyvesync/base_devices/purifier_base.py

@@ -109,7 +109,7 @@ def __init__(
         self.auto_preference_type: str | None = None
         self.auto_room_size: int | None = None
         self._air_quality_level: AirQualityLevel | None = None
-        self.child_lock: bool = False
+        self.child_lock: bool | None = None
         self.filter_open_state: bool = False
         self.display_status: str | None = None
         self.display_set_status: str | None = None
@@ -502,11 +502,11 @@ async def child_lock_off(self) -> bool:
 
     @property
     @deprecated('Use self.state.child_lock instead.')
-    def child_lock(self) -> bool:
+    def child_lock(self) -> bool | None:
         """Get child lock state.
 
         Returns:
-            bool : True if child lock is enabled, False if not.
+            bool | None : True if child lock is enabled, False if not, None if unknown.
         """
         return self.state.child_lock