fix(cleanup): fix vmware CD-ROM omit fragility and add cross-role defaults

roles/cleanup/tasks/xen.yml

@@ -3,6 +3,8 @@
   when: hypervisor_type == "xen"
   delegate_to: localhost
   become: false
+  vars:
+    xen_installer_media_enabled: "{{ xen_installer_media_enabled | default(false) }}"
   block:
     - name: Ensure Xen disk definitions exist
       when: virtualization_xen_disks is not defined