test_render: fixed license info

src/test-render.rs

@@ -1,4 +1,22 @@
-/* see render.rs for licensing information */
+/*
+ * Copyright (c) 2025 Emma Tebibyte <emma@tebibyte.media>
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ *
+ * This file is part of Mintee.
+ *
+ * Mintee is free software: you can redistribute it and/or modify it under the
+ * terms of the GNU Affero General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option)
+ * any later version.
+ * 
+ * Mintee is distributed in the hope that it will be useful, but WITHOUT ANY
+ * WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
+ * FOR A PARTICULAR PURPOSE. See the GNU Affero General Public License for more
+ * details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with Mintee. If not, see https://www.gnu.org/licenses/.
+ */
 
 use std::{
 	env::{ args, current_dir },