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

tests/project_template/urls.py

@@ -1,7 +1,7 @@
-from django.conf.urls import url
+from django.urls import path
 
 from . import views
 
 urlpatterns = [
-    url(r'^empty/$', views.empty_view),
+    path('empty/', views.empty_view),
 ]