Recently we fixed the libvirt.sh script
and removed the conditionals cgroup commands
which were introduced for smooth transition
to Jammy and cgroups v2
https://review.opendev.org/c/openstack/openstack-helm-infra/+/929401
But because we didn't have overrides for 2023.1
we used to run 2023.1 with the default libvirt image
openstackhelm/libvirt:latest-ubuntu_focal
which does not work with cgroups v2 on the host
system with this recent fix (see above).
So the 2023.1 Ubuntu Jammy compute-kit test jobs fails.
This PR fixes this job by means of introducing
explicit image overrides for 2023.1.
Change-Id: Ie81f8fb412362388274ea92ad7fa5d3d176c0441