Update imports

pretalx_media_ccc_de/views.py

@@ -1,7 +1,7 @@
 from django.contrib import messages
 from django.utils.translation import gettext_lazy as _
 from django.views.generic import FormView
-from pretalx.common.mixins.views import PermissionRequired
+from pretalx.common.views.mixins import PermissionRequired
 
 from .forms import MediaCCCDeSettingsForm, MediaCCCDeUrlForm
 from .recording import MediaCCCDe