refactor: consolidate linting tools into Ruff

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

tests/test_upload_to_onedrive.py

@@ -5,8 +5,7 @@ Covers get_onedrive_token, create_upload_session, upload_large_file,
 and upload_to_onedrive Celery task.
 """
 
-import os
-from unittest.mock import MagicMock, Mock, patch
+from unittest.mock import Mock, patch
 
 import pytest