Fix CI (no idea of why this error happened)

apps/permission/permissions.py

@@ -2,6 +2,7 @@
 # SPDX-License-Identifier: GPL-3.0-or-later
 
 from rest_framework.permissions import DjangoObjectPermissions
+
 from .backends import PermissionBackend
 
 SAFE_METHODS = ('HEAD', 'OPTIONS', )