Django 4.0 warnings (jazzband#585)

* switch to gettext

* switch to gettext

Author: jheld

push_notifications/admin.py

@@ -1,7 +1,7 @@
 from django.apps import apps
 from django.contrib import admin, messages
 from django.utils.encoding import force_text
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 from .apns import APNSServerError
 from .gcm import GCMError

push_notifications/models.py

@@ -1,5 +1,5 @@
 from django.db import models
-from django.utils.translation import ugettext_lazy as _
+from django.utils.translation import gettext_lazy as _
 
 from .fields import HexIntegerField
 from .settings import PUSH_NOTIFICATIONS_SETTINGS as SETTINGS