`test_4eyes_workflow_with_v2_versioning` is flaky

[khvn26]

Example of an error:

==================================== ERRORS ====================================
___________ ERROR at setup of test_4eyes_workflow_with_v2_versioning ___________
[gw12] linux -- Python 3.13.11 /home/runner/.cache/pypoetry/virtualenvs/flagsmith-api-h9Rv37Cj-py3.13/bin/python

registered_org_admin_user_email = 'registered_admin_user@example.com'
admin_invite_link_hash = '3ouCU5qZzNqNUgZkFM96Sr'

    @pytest.fixture()
    def registered_org_admin_user(registered_org_admin_user_email, admin_invite_link_hash):
        password = FFAdminUser.objects.make_random_password()
        api_client = APIClient()
    
        register_url = reverse("api-v1:custom_auth:ffadminuser-list")
        data = {
            "email": registered_org_admin_user_email,
            "password": password,
            "first_name": "Registered",
            "last_name": "Admin-User",
        }
        response = api_client.post(
            register_url, data=json.dumps(data), content_type="application/json"
        )
>       assert response.status_code == status.HTTP_201_CREATED
E       assert 400 == 201
E        +  where 400 = <Response status_code=400, "application/json">.status_code
E        +  and   201 = status.HTTP_201_CREATED