refactor: replace some create_user with UserFactory to avoid non-existent profile errors

openedx/core/djangoapps/oauth_dispatch/tests/test_dot_overrides.py

@@ -9,7 +9,6 @@ import datetime
 import unittest
 
 from django.conf import settings
-from django.contrib.auth.models import User  # lint-amnesty, pylint: disable=imported-auth-user
 from django.test import RequestFactory, TestCase
 from django.utils import timezone
 
@@ -33,7 +32,7 @@ class AuthenticateTestCase(TestCase):
 
     def setUp(self):
         super().setUp()
-        self.user = User.objects.create_user(
+        self.user = UserFactory.create(
             username='darkhelmet',
             password='12345',
             email='darkhelmet@spaceball_one.org',
@@ -58,7 +57,7 @@ class CustomValidationTestCase(TestCase):
     """
     def setUp(self):
         super().setUp()
-        self.user = User.objects.create_user(
+        self.user = UserFactory.create(
             username='darkhelmet',
             password='12345',
             email='darkhelmet@spaceball_one.org',