Fix turn on without speed in homekit controller (#47597)

tests/components/homekit_controller/conftest.py

@@ -11,6 +11,13 @@ import homeassistant.util.dt as dt_util
 from tests.components.light.conftest import mock_light_profiles  # noqa: F401
 
 
+@pytest.fixture(autouse=True)
+def mock_zeroconf():
+    """Mock zeroconf."""
+    with mock.patch("homeassistant.components.zeroconf.HaZeroconf") as mock_zc:
+        yield mock_zc.return_value
+
+
 @pytest.fixture
 def utcnow(request):
     """Freeze time at a known point."""