Add a CI pipeline to validate elevate with cloudlinux #5

Job	Run time
testsuite / testsuite	2m 41s
terraform_openstack_create	1m 52s
clone_elevate_repo	7s
setup_integration_checks	6s
start_elevate	2m 42s
wait_for_stage_1_reboot	8s
watch_for_stage_2_reboot	6s
wait_for_stage_2_reboot	5s
watch_for_stage_3_reboot	3m 26s
wait_for_stage_3_reboot	14s
watch_for_stage_4_reboot	8m 53s
wait_for_stage_4_reboot	8m 45s
watch_for_stage_5_reboot	8m 5s
wait_for_stage_5_reboot	34s
watch_for_final_reboot	44s
wait_for_final_reboot	30s
verify_upgraded_os	6s
terraform_openstack_destroy	43s
	39m 47s

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