Fix aarch64 Linux build: use cross for musl cross-compilation #2

Job	Run time
build (x86_64-apple-darwin, macos-latest, atomic-x86_64-macos, false)	2m 32s
build (aarch64-unknown-linux-musl, ubuntu-latest, atomic-aarch64-linux, true)	3m 0s
build (aarch64-apple-darwin, macos-latest, atomic-aarch64-macos, false)	2m 22s
build (x86_64-unknown-linux-musl, ubuntu-latest, atomic-x86_64-linux, false)	2m 2s
release	7s
	10m 3s

Provide feedback