scheduled workflow: Support multi-arch #526

Job	Run time
sanity	12s
unittests	9s
bookworm, arm64, good, verbose=bloom / build debs	7m 46s
bookworm, x64, good, verbose=bloom / build debs	5m 15s
jammy, arm64, good / build debs	8m 20s
jammy, x64, good / build debs	6m 20s
noble, x64, good, verbose=true / build debs	5m 39s
noble, arm64, good, verbose=true / build debs	8m 52s
bookworm squash / deploy	0s
jammy push / deploy	0s
	42m 33s

Provide feedback