apply black's "fixes"

plans_payments/models.py

@@ -167,7 +167,9 @@ def change_payment_status(sender, *args, **kwargs):
     ):
         order.status = Order.STATUS.CANCELED
         # In case django-simples-history is installed
-        order._change_reason = f"Django-plans-payments: Payment status changed to {payment.status}"
+        order._change_reason = (
+            f"Django-plans-payments: Payment status changed to {payment.status}"
+        )
         order.save()
         if hasattr(order.user.userplan, "recurring"):
             order.user.userplan.recurring.token_verified = False