Add default license header to files which have no copyright or license header yet (#5074)

* Add default license header to files which have no copyright or license header yet.

* yml extension should have been xml...

tests/integration/targets/setup_rundeck/defaults/main.yml

@@ -1,2 +1,7 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 rundeck_war_url: https://packagecloud.io/pagerduty/rundeck/packages/java/org.rundeck/rundeck-3.4.4-20210920.war/artifacts/rundeck-3.4.4-20210920.war/download
 rundeck_cli_url: https://github.com/rundeck/rundeck-cli/releases/download/v1.3.10/rundeck-cli-1.3.10-all.jar

tests/integration/targets/setup_rundeck/meta/main.yml

@@ -1,3 +1,7 @@
 ---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 dependencies:
   - setup_pkg_mgr

tests/integration/targets/setup_rundeck/vars/Alpine.yml

@@ -1 +1,6 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 openjdk_pkg: openjdk11-jre-headless

tests/integration/targets/setup_rundeck/vars/Archlinux.yml

@@ -1 +1,6 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 openjdk_pkg: jre11-openjdk-headless

tests/integration/targets/setup_rundeck/vars/Debian.yml

@@ -1 +1,6 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 openjdk_pkg: openjdk-11-jre-headless

tests/integration/targets/setup_rundeck/vars/RedHat.yml

@@ -1 +1,6 @@
+---
+# Copyright (c) Ansible Project
+# GNU General Public License v3.0+ (see LICENSES/GPL-3.0-or-later.txt or https://www.gnu.org/licenses/gpl-3.0.txt)
+# SPDX-License-Identifier: GPL-3.0-or-later
+
 openjdk_pkg: java-1.8.0-openjdk