Add license information to files for MX bridges

As the future for the MX bridges in this playbook and by themselves seems uncertain, this commit adds license information in SPDX format to the files for those bridges, before the bridges would be deprecated and possibly get removed from the project.

Please note that .license files are added for the files which would be broken if such information are added as header, following the REUSE's specification.

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

roles/custom/matrix-bridge-mx-puppet-groupme/tasks/main.yml

@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: 2021 Cody Neiman
+# SPDX-FileCopyrightText: 2022 Marko Weltzer
+# SPDX-FileCopyrightText: 2022 - 2023 Slavi Pantaleev
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - tags:

roles/custom/matrix-bridge-mx-puppet-groupme/tasks/setup_install.yml

@@ -1,3 +1,13 @@
+# SPDX-FileCopyrightText: 2021 Cody Neiman
+# SPDX-FileCopyrightText: 2021 - 2024 Slavi Pantaleev
+# SPDX-FileCopyrightText: 2022 Marko Weltzer
+# SPDX-FileCopyrightText: 2022 Jim Myhrberg
+# SPDX-FileCopyrightText: 2022 Nikita Chernyi
+# SPDX-FileCopyrightText: 2022 Sebastian Gumprich
+# SPDX-FileCopyrightText: 2024 David Mehren
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Ensure MX Puppet Groupme paths exist

roles/custom/matrix-bridge-mx-puppet-groupme/tasks/setup_uninstall.yml

@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: 2021 Cody Neiman
+# SPDX-FileCopyrightText: 2021 - 2022 Slavi Pantaleev
+# SPDX-FileCopyrightText: 2022 Marko Weltzer
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Check existence of matrix-mx-puppet-groupme service

roles/custom/matrix-bridge-mx-puppet-groupme/tasks/validate_config.yml

@@ -1,3 +1,8 @@
+# SPDX-FileCopyrightText: 2021 Cody Neiman
+# SPDX-FileCopyrightText: 2022 - 2024 Slavi Pantaleev
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Fail if required mx-puppet-groupme settings not defined