fix: use ansible_user_id instead of ansible_user in libvirt_manager_user

Replace ansible_user with ansible_user_id in cifmw_libvirt_manager_user
variable to fix SSH key ownership issues when running with
ansible_connection=local.

When deploying locally (not through testproject automation), ansible_user
can become undefined with ansible_connection=local, causing the fallback
lookup('env', 'USER') to return 'root' instead of the intended user. This
resulted in SSH keys being created with root:root ownership, leading to
permission denied errors when the user tried to connect to compute nodes.

The switch to ansible_user_id correctly detects the user even with local
connections and resolves the file ownership problem.

Author: Valkyrie00

roles/libvirt_manager/defaults/main.yml

@@ -20,7 +20,7 @@
 
 cifmw_libvirt_manager_basedir: "{{ cifmw_basedir | default( ansible_user_dir ~ '/ci-framework-data') }}"
 cifmw_libvirt_manager_enable_virtualization_module: false
-cifmw_libvirt_manager_user: "{{ ansible_user | default(lookup('env', 'USER')) }}"
+cifmw_libvirt_manager_user: "{{ ansible_user_id | default(lookup('env', 'USER')) }}"
 cifmw_libvirt_manager_images_url: https://cloud.centos.org/centos/9-stream/x86_64/images
 cifmw_libvirt_manager_vm_template: "domain.xml.j2"