fix: update stream_chat/tests/async_chat/test_channel.py

Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>

stream_chat/tests/async_chat/test_channel.py

@@ -449,9 +449,7 @@ async def test_update_member_partial(
 
         # Test setting a new field while unsetting the previous one
         response = await channel.update_member_partial(
-            user_id,
-            set={"color": "red"},
-            unset=["hat"]
+            user_id, set={"color": "red"}, unset=["hat"]
         )
         assert response["channel_member"]["color"] == "red"
         assert "hat" not in response["channel_member"]