Change default process type host to IPv6 `::` #735

Job	Run time
lint	25s
integration-test	3m 33s
print-pack-getting-started-output (aarch64-unknown-linux-musl)	3m 40s
print-pack-getting-started-output (x86_64-unknown-linux-musl)	4m 24s
unit-test	21s
	12m 23s

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