Create a command similar to `build-minirootfs` for CPIO #2127

Job	Run time
source-date-epoch	1m 17s
build-all-examples-amd64 (ubuntu-latest)	1m 27s
build-date-epoch	1m 14s
annotations	1m 3s
build-all-examples-amd64 (macos-latest)	2m 2s
build-nginx-multiarch	1m 3s
build-nginx-all-arches (x86_64)	1m 3s
build-nginx-all-arches (386)	59s
build-nginx-all-arches (armv7)	56s
build-nginx-all-arches (aarch64)	1m 8s
build-nginx-all-arches (riscv64)	1m 6s
build-nginx-all-arches (s390x)	1m 7s
build-nginx-all-arches (ppc64le)	1m 12s
	15m 37s

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