⚠️ Add pure alpine flavor #394

Job	Run time
core-alpine / build	10m 22s
core-alpine / build	10m 22s
core / build	3m 31s
core / build	3m 31s
bundles	0s
bundles	0s
reset	0s
reset	0s
acceptance	0s
acceptance	0s
zfs	0s
zfs	0s
install	0s
install	0s
encryption	0s
encryption	0s
netboot	0s
netboot	0s
upgrade	0s
upgrade	0s
upgrade-latest	0s
upgrade-latest	0s
reset-alpine / test	19m 34s
reset-alpine / test	19m 34s
netboot-alpine / test	15m 44s
netboot-alpine / test	15m 44s
acceptance-alpine / test	12m 37s
acceptance-alpine / test	12m 37s
install-alpine / test	22m 29s
install-alpine / test	16m 27s
upgrade-alpine / test	21m 16s
upgrade-alpine / test	21m 16s
encryption-alpine (remote-auto) / test	13m 30s
encryption-alpine (remote-auto) / test	13m 30s
encryption-alpine (local-encryption) / test	17m 23s
encryption-alpine (local-encryption) / test	17m 23s
encryption-alpine (remote-https-bad-cert) / test	10m 54s
encryption-alpine (remote-https-bad-cert) / test	10m 54s
encryption-alpine (remote-static) / test	13m 0s
encryption-alpine (remote-static) / test	13m 0s
encryption-alpine (remote-https-pinned) / test	13m 13s
encryption-alpine (remote-https-pinned) / test	13m 13s
	5h 41m 4s

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