chore: set up ruff as a new linter/formatter (#28158)

tests/integration_tests/security/migrate_roles_tests.py

@@ -15,9 +15,10 @@
 # specific language governing permissions and limitations
 # under the License.
 """Unit tests for alerting in Superset"""
+
 import logging
 from contextlib import contextmanager
-from unittest.mock import patch
+from unittest.mock import patch  # noqa: F401
 
 import pytest
 from flask_appbuilder.security.sqla.models import Role