⬆️ Update Update slackapi/slack-github-action action to v2 #1910

Job	Run time
core-alpine / build	10m 16s
core-ubuntu-22-lts / build	13m 10s
core-ubuntu-24-10 / build	11m 40s
core-ubuntu-24-lts / build	11m 25s
standard / build	11m 6s
netboot-alpine / test	59m 4s
acceptance-alpine / test	16m 2s
upgrade-alpine / test	38m 2s
install-alpine / test	19m 25s
reset-alpine / test	37m 9s
encryption-alpine (local-encryption) / test	10m 49s
encryption-alpine (remote-auto) / test	12m 41s
encryption-alpine (remote-https-bad-cert) / test	9m 31s
encryption-alpine (remote-static) / test	11m 31s
encryption-alpine (remote-https-pinned) / test	12m 44s
bundles	0s
install-secureboot	0s
reset	0s
acceptance	0s
custom-partitioning	0s
install	0s
install-target	0s
netboot	0s
upgrade	0s
upgrade-latest	0s
encryption	0s
zfs / test	32m 52s
	5h 17m 27s

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