CI: convert molecule jobs to parallel:matrix

With the new provisionning using kubevirt this should be faster.

tests/cloud_playbooks/roles/packet-ci/tasks/main.yml

@@ -1,6 +1,6 @@
 ---
 - name: Include custom vars for ci job
-  include_vars: "../files/{{ ci_job_name }}.yml"
+  include_vars: "../files/{{ lookup('ansible.builtin.env', 'CI_JOB_NAME') }}.yml"
   when: molecule_yml is not defined
 
 - name: Generate SSH keypair