Use asynctest-mock in most places (#35109)

* Use asynctest-mock in most places

* Fix broken patch in pilight

tests/util/test_init.py

@@ -1,12 +1,13 @@
 """Test Home Assistant util methods."""
 from datetime import datetime, timedelta
-from unittest.mock import MagicMock, patch
 
 import pytest
 
 from homeassistant import util
 import homeassistant.util.dt as dt_util
 
+from tests.async_mock import MagicMock, patch
+
 
 def test_sanitize_filename():
     """Test sanitize_filename."""