Updated test URL patterns to use path() and re_path().

tests/auth_tests/test_admin_multidb.py

@@ -1,12 +1,11 @@
 from unittest import mock
 
-from django.conf.urls import url
 from django.contrib import admin
 from django.contrib.auth.admin import UserAdmin
 from django.contrib.auth.models import User
 from django.db import connections
 from django.test import TestCase, override_settings
-from django.urls import reverse
+from django.urls import path, reverse
 
 
 class Router:
@@ -22,7 +21,7 @@ site = admin.AdminSite(name='test_adminsite')
 site.register(User, admin_class=UserAdmin)
 
 urlpatterns = [
-    url(r'^admin/', site.urls),
+    path('admin/', site.urls),
 ]