fix copyright test

Author: ildyria

app/Models/UserGroup.php

@@ -1,5 +1,11 @@
 <?php
 
+/**
+ * SPDX-License-Identifier: MIT
+ * Copyright (c) 2017-2018 Tobias Reich
+ * Copyright (c) 2018-2025 LycheeOrg.
+ */
+
 namespace App\Models;
 
 use App\Constants\AccessPermissionConstants as APC;