Add return type hints in tests (k-z) (#118942)

tests/components/logbook/test_models.py

@@ -5,7 +5,7 @@ from unittest.mock import Mock
 from homeassistant.components.logbook.models import LazyEventPartialState
 
 
-def test_lazy_event_partial_state_context():
+def test_lazy_event_partial_state_context() -> None:
     """Test we can extract context from a lazy event partial state."""
     state = LazyEventPartialState(
         Mock(