refactor: Import function instead of calling deprecated module.

This change removes the deprecated call to `hass.helpers.service` to use
the recommended function import, so it works on 2026.1.

custom_components/localtuya/__init__.py

@@ -26,6 +26,7 @@
 from homeassistant.exceptions import HomeAssistantError
 from homeassistant.helpers.device_registry import DeviceEntry
 from homeassistant.helpers.event import async_track_time_interval
+from homeassistant.helpers.service import async_register_admin_service
 
 from .cloud_api import TuyaCloudApi
 from .common import TuyaDevice, async_config_entry_by_device_id
@@ -162,7 +163,7 @@ async def _async_reconnect(now):
 
     async_track_time_interval(hass, _async_reconnect, RECONNECT_INTERVAL)
 
-    hass.helpers.service.async_register_admin_service(
+    async_register_admin_service(
         DOMAIN,
         SERVICE_RELOAD,
         _handle_reload,