Add license information to a role

Signed-off-by: Suguru Hirahara <acioustick@noreply.codeberg.org>

roles/custom/matrix-bot-draupnir/tasks/main.yml

@@ -1,3 +1,8 @@
+# SPDX-FileCopyrightText: 2023 MDAD project contributors
+# SPDX-FileCopyrightText: 2023 Slavi Pantaleev
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - tags:

roles/custom/matrix-bot-draupnir/tasks/setup_install.yml

@@ -1,3 +1,10 @@
+# SPDX-FileCopyrightText: 2023 - 2024 MDAD project contributors
+# SPDX-FileCopyrightText: 2024 David Mehren
+# SPDX-FileCopyrightText: 2024 Slavi Pantaleev
+# SPDX-FileCopyrightText: 2024 Suguru Hirahara
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - ansible.builtin.set_fact:

roles/custom/matrix-bot-draupnir/tasks/setup_uninstall.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2023 MDAD project contributors
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Check existence of matrix-bot-draupnir service

roles/custom/matrix-bot-draupnir/tasks/validate_config.yml

@@ -1,3 +1,8 @@
+# SPDX-FileCopyrightText: 2023 - 2025 MDAD project contributors
+# SPDX-FileCopyrightText: 2024 - 2025 Slavi Pantaleev
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Fail if required matrix-bot-draupnir variables are undefined