Replace usages of datetime.now(UTC) with dt_util for Sonos (#172737)

tests/components/sonos/test_media_player.py

@@ -1,7 +1,6 @@
 """Tests for the Sonos Media Player platform."""
 
 from collections.abc import Generator
-from datetime import UTC, datetime
 from typing import Any
 from unittest.mock import MagicMock, patch
 
@@ -87,6 +86,7 @@ from homeassistant.helpers.device_registry import (
     DeviceRegistry,
 )
 from homeassistant.setup import async_setup_component
+from homeassistant.util import dt as dt_util
 
 from .conftest import MockMusicServiceItem, MockSoCo, SoCoMockFactory, SonosMockEvent
 
@@ -1477,7 +1477,7 @@ async def test_position_updates(
     assert state.attributes[ATTR_MEDIA_POSITION] == 42
     # updated_at should be recent
     updated_at = state.attributes[ATTR_MEDIA_POSITION_UPDATED_AT]
-    assert updated_at == datetime.now(UTC)  # pylint: disable=home-assistant-enforce-utcnow
+    assert updated_at == dt_util.utcnow()
 
     # Position only updated by 1 second; should not update attributes
     new_track_info = current_track_info.copy()
@@ -1507,8 +1507,7 @@ async def test_position_updates(
         await hass.async_block_till_done(wait_background_tasks=True)
         state = hass.states.get(entity_id)
         assert state.attributes[ATTR_MEDIA_POSITION] == 70
-        # pylint: disable-next=home-assistant-enforce-utcnow
-        assert state.attributes[ATTR_MEDIA_POSITION_UPDATED_AT] == datetime.now(UTC)
+        assert state.attributes[ATTR_MEDIA_POSITION_UPDATED_AT] == dt_util.utcnow()
 
 
 @pytest.mark.parametrize(