trivial: update reverse import for django 2.2 (#52016)

combo_plugin_nanterre/views.py

@@ -22,8 +22,8 @@ from django.conf import settings
 from django.contrib import messages
 from django.contrib.auth.decorators import login_required
 from django.core.exceptions import PermissionDenied
-from django.core.urlresolvers import reverse
 from django.http import HttpResponse, HttpResponseRedirect, Http404
+from django.urls import reverse
 from django.views.decorators.csrf import csrf_exempt
 
 from combo.utils import requests, get_templated_url