Add license information to matrix-bridge-appservice-irc

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

roles/custom/matrix-bridge-appservice-irc/tasks/setup_uninstall.yml

@@ -1,3 +1,9 @@
+# SPDX-FileCopyrightText: 2019 - 2022 Slavi Pantaleev
+# SPDX-FileCopyrightText: 2020 MDAD project contributors
+# SPDX-FileCopyrightText: 2022 Marko Weltzer
+#
+# SPDX-License-Identifier: AGPL-3.0-or-later
+
 ---
 
 - name: Check existence of matrix-appservice-irc service