Add build container based on Debian 12 #383

Job	Run time
test-playbook (stratum0, rockylinux-8)	3m 41s
test-playbook (stratum0, ubuntu-20.04)	2m 18s
test-playbook (stratum0, ubuntu-22.04)	1m 44s
test-playbook (stratum1, rockylinux-8)	3m 17s
test-playbook (stratum1, ubuntu-20.04)	3m 8s
test-playbook (stratum1, ubuntu-22.04)	2m 28s
test-playbook (localproxy, rockylinux-8)	3m 2s
test-playbook (localproxy, ubuntu-20.04)	2m 8s
test-playbook (localproxy, ubuntu-22.04)	2m 5s
test-playbook (client, rockylinux-8)	2m 41s
test-playbook (client, ubuntu-20.04)	1m 52s
test-playbook (client, ubuntu-22.04)	1m 31s
	29m 55s

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