Fix import ordering for Jenkins lint

mandelstudio/urls.py

@@ -1,12 +1,10 @@
-from django.views.decorators.cache import cache_page
 from django.urls import include, path
+from django.views.decorators.cache import cache_page
 
 from ocyan.main.urls import urlpatterns as ocyan_urlpatterns
 from ocyan.plugin.wagtail_oscar_integration.constants import CACHE_DURATION
 
-from .sitemaps import robots_txt
-from .sitemaps import sitemap_index
-from .sitemaps import sitemap_section
+from .sitemaps import robots_txt, sitemap_index, sitemap_section
 
 urlpatterns = [
     path("i18n/", include("django.conf.urls.i18n")),