style: fix code formatting with black, isort, and flake8

Co-authored-by: christianlouis <361235+christianlouis@users.noreply.github.com>

tests/test_api_user.py

@@ -1,8 +1,10 @@
 """Tests for app/api/user.py module."""
-import pytest
+
 from hashlib import md5
 from unittest.mock import MagicMock
 
+import pytest
+
 from app.api.user import whoami_handler