Change default process type host to IPv6 `::` #734

Job	Run time
unit-test	24s
print-pack-getting-started-output (aarch64-unknown-linux-musl)	3m 33s
integration-test	3m 30s
lint	16s
print-pack-getting-started-output (x86_64-unknown-linux-musl)	2m 54s
	10m 37s

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