Fix migration

aleksis/apps/tezor/migrations/0003_manual_invoicing.py

@@ -8,7 +8,7 @@ import django.db.models.deletion
 class Migration(migrations.Migration):
 
     dependencies = [
-        ('core', '0038_notification_send_at.py'),
+        ('core', '0038_notification_send_at'),
         ('sites', '0002_alter_domain_unique'),
         ('tezor', '0002_invoice_due_date'),
     ]