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/dnf_versionlock/tasks/install.yml

@@ -1,4 +1,8 @@
 ---
+# 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
+
 - name: Install dnf versionlock plugin
   dnf:
     name: dnf-plugin-versionlock

tests/integration/targets/dnf_versionlock/tasks/lock_bash.yml

@@ -1,4 +1,8 @@
 ---
+# 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
+
 - name: Clear locklist
   community.general.dnf_versionlock:
     state: clean

tests/integration/targets/dnf_versionlock/tasks/lock_updates.yml

@@ -1,4 +1,8 @@
 ---
+# 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
+
 - name: Check packages with updates
   dnf:
     list: updates

tests/integration/targets/dnf_versionlock/tasks/main.yml

@@ -1,4 +1,8 @@
 ---
+# 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
+
 - block:
     - include_tasks: install.yml
     - include_tasks: lock_bash.yml