Describe the bug
Warning when running tests due to no list ordering.

To Reproduce
Steps to reproduce the behavior:

1. Hitting this endpoint in tests: /mfa/user-active-methods/
2. Yields this error: django.core.paginator.UnorderedObjectListWarning: Pagination may yield inconsistent results with an unordered object_list: <class 'authorization.models.MFAMethod'> QuerySet.

Expected behavior
The endpoint should have an ordering - or the model should have default ordering.