Setting up REUSE: add copyright statements to yml files in roles/custom/

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

roles/custom/matrix-bot-go-neb/defaults/main.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 MDAD Team and contributors
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 # Go-NEB is a Matrix bot written in Go. It is the successor to Matrix-NEB, the original Matrix bot written in Python.

roles/custom/matrix-bot-go-neb/tasks/install.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 MDAD Team and contributors
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Ensure go-neb paths exist

roles/custom/matrix-bot-go-neb/tasks/main.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 MDAD Team and contributors
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - tags:

roles/custom/matrix-bot-go-neb/tasks/uninstall.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 MDAD Team and contributors
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Check existence of matrix-go-neb service

roles/custom/matrix-bot-go-neb/tasks/validate_config.yml

@@ -1,3 +1,7 @@
+# SPDX-FileCopyrightText: 2024 MDAD Team and contributors
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Fail if there's not at least 1 client