Add build container based on Debian 12 #382

Job	Run time
test-playbook (stratum0, rockylinux-8)	3m 23s
test-playbook (stratum0, ubuntu-20.04)	2m 20s
test-playbook (stratum0, ubuntu-22.04)	1m 50s
test-playbook (stratum1, rockylinux-8)	3m 20s
test-playbook (stratum1, ubuntu-20.04)	2m 39s
test-playbook (stratum1, ubuntu-22.04)	2m 9s
test-playbook (localproxy, rockylinux-8)	3m 0s
test-playbook (localproxy, ubuntu-20.04)	2m 25s
test-playbook (localproxy, ubuntu-22.04)	2m 13s
test-playbook (client, rockylinux-8)	2m 48s
test-playbook (client, ubuntu-20.04)	1m 47s
test-playbook (client, ubuntu-22.04)	1m 34s
	29m 28s

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