⬆️ Update Update slackapi/slack-github-action action to v2 #1901

Job	Run time
core-alpine / build	9m 28s
core-ubuntu-22-lts / build	11m 59s
core-ubuntu-24-10 / build	14m 37s
core-ubuntu-24-lts / build	13m 44s
standard / build	16m 17s
upgrade-alpine / test	36m 41s
acceptance-alpine / test	57m 28s
install-alpine / test	21m 24s
reset-alpine / test	41m 45s
netboot-alpine / test	10m 32s
encryption-alpine (local-encryption) / test	10m 22s
encryption-alpine (remote-auto) / test	14m 2s
encryption-alpine (remote-https-bad-cert) / test	9m 42s
encryption-alpine (remote-https-pinned) / test	11m 37s
encryption-alpine (remote-static) / test	10m 48s
zfs / test	31m 19s
bundles / test	39m 5s
install / test	20m 14s
install-secureboot / test	22m 40s
acceptance / test	21m 22s
install-target / test	17m 50s
netboot / test	14m 43s
reset / test	1h 0m 41s
upgrade / test	45m 52s
upgrade-latest / test	49m 0s
custom-partitioning (ubuntu, 24.04) / test	15m 25s
encryption (remote-auto) / test	15m 33s
encryption (local-encryption) / test	14m 22s
encryption (remote-https-bad-cert) / test	13m 44s
encryption (remote-https-pinned) / test	15m 8s
encryption (remote-static) / test	14m 58s
	11h 42m 22s

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