Make more linting corrections

osidb/mixins.py

@@ -1,9 +1,9 @@
-import pghistory
-import pgtrigger
 import uuid
 from functools import cached_property
 from itertools import chain
 
+import pghistory
+import pgtrigger
 from django.apps import apps
 from django.conf import settings
 from django.contrib.contenttypes.fields import GenericForeignKey, GenericRelation

osidb/tests/endpoints/flaws/test_unembargo.py

@@ -2,6 +2,7 @@
 from itertools import chain
 
 import pytest
+from django.conf import settings
 from freezegun import freeze_time
 from rest_framework import status