Be nicer to non-amd64 hosts #629

Job	Run time
Check DockerHub secrets exist	1s
test (arch)	1m 5s
test (bookworm)	48s
test (bullseye)	44s
test (trixie)	59s
Build Docker container	3m 13s
Run unit tests	2m 11s
recipes on nofakemachine	32s
escaping on nofakemachine	35s
debian (amd64) on nofakemachine	1m 0s
debian (arm64) on nofakemachine	2m 2s
debian (armhf) on nofakemachine	2m 2s
recipes on qemu	55s
escaping on qemu	41s
debian (amd64) on qemu	5m 9s
debian (arm64) on qemu	33m 55s
debian (armhf) on qemu	36m 5s
recipes on uml	39s
escaping on uml	39s
debian (amd64) on uml	4m 50s
debian (arm64) on uml	10m 9s
debian (armhf) on uml	17m 38s
recipes on kvm	1m 10s
escaping on kvm	1m 5s
debian (amd64) on kvm	1m 57s
debian (arm64) on kvm	4m 2s
debian (armhf) on kvm	3m 57s
arch on kvm	2m 43s
apertis on kvm	1m 47s
allgreen	4s
Publish to DockerHub	0s
Publish to GHCR	0s
	2h 22m 37s

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