new file: playbooks/host_maintenance/os_reboot.yaml

renamed:    roles/host_maintenance/tasks/main.yml -> roles/host_maintenance/tasks/main.yaml
new file:   roles/host_maintenance/tasks/os_reboot.yaml

playbooks/host_maintenance/os_reboot.yaml

@@ -0,0 +1,7 @@
+- name: host maintenance - os update
+  hosts: '{{target|default("all")}}'
+  become: true
+  tasks:
+    - ansible.builtin.include_role:
+        name: mylimbo.globals.host_maintenance
+        tasks_from: os_reboot