chore(deps): update earthly/earthly docker tag to v0.8.9 #1154

Job	Run time
core-ubuntu-22-lts / build	11m 12s
core-ubuntu-24-lts / build	11m 43s
core-alpine / build	8m 44s
standard / build	10m 32s
install-alpine / test	22m 21s
netboot-alpine / test	10m 56s
reset-alpine / test	27m 30s
acceptance-alpine / test	1h 25m 27s
upgrade-alpine / test	30m 34s
encryption-alpine (remote-auto) / test	11m 14s
encryption-alpine (local-encryption) / test	10m 14s
encryption-alpine (remote-https-bad-cert) / test	11m 20s
encryption-alpine (remote-static) / test	17m 39s
encryption-alpine (remote-https-pinned) / test	16m 32s
zfs / test	30m 1s
bundles / test	39m 3s
reset / test	37m 19s
acceptance / test	14m 38s
install-secureboot / test	22m 44s
netboot / test	15m 1s
install / test	22m 34s
upgrade / test	43m 34s
upgrade-latest / test	31m 40s
custom-partitioning (ubuntu, 24.04) / test	18m 1s
encryption (local-encryption) / test	13m 47s
encryption (remote-auto) / test	14m 32s
encryption (remote-https-bad-cert) / test	13m 35s
encryption (remote-https-pinned) / test	16m 33s
encryption (remote-static) / test	13m 59s
	10h 32m 59s

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