Add Django 4.0 support

tests/test_project/urls.py

@@ -13,7 +13,7 @@ Including another URLconf
     1. Import the include() function: from django.urls import include, path
     2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
 """
-from django.conf.urls import url
 from django.contrib import admin
+from django.urls import path
 
-urlpatterns = [url("admin/", admin.site.urls)]
+urlpatterns = [path("admin/", admin.site.urls)]