Clean up use of deprecated async_get_registry methods (#72001)

homeassistant/components/device_tracker/device_trigger.py

@@ -41,7 +41,7 @@ async def async_get_triggers(
     hass: HomeAssistant, device_id: str
 ) -> list[dict[str, Any]]:
     """List device triggers for Device Tracker devices."""
-    registry = await entity_registry.async_get_registry(hass)
+    registry = entity_registry.async_get(hass)
     triggers = []
 
     # Get all the integrations entities for this device