.github: Bump slackapi/slack-github-action from 1.24.0 to 1.26.0 #92

Job	Run time
android	53s
crossmin (plan9, amd64)	3m 2s
cross (linux, arm64)	5m 44s
crossmin (aix, ppc64)	3m 11s
depaware	30s
cross (linux, 386)	5m 24s
fuzz	6m 58s
cross (linux, loong64)	5m 36s
go_generate	1m 9s
go_mod_tidy	26s
cross (linux, arm, 5)	5m 32s
cross (linux, arm, 7)	4m 21s
ios	41s
licenses	7s
privileged	46s
cross (darwin, amd64)	5m 26s
cross (darwin, arm64)	5m 34s
race-build	3m 54s
race-root-integration (1/4)	1m 17s
cross (windows, amd64)	5m 22s
staticcheck (linux, amd64)	3m 9s
race-root-integration (2/4)	1m 16s
cross (windows, arm64)	5m 14s
staticcheck (windows, amd64)	3m 3s
race-root-integration (3/4)	1m 18s
tailscale_go	27s
cross (freebsd, amd64)	5m 25s
race-root-integration (4/4)	1m 18s
staticcheck (darwin, amd64)	3m 4s
cross (openbsd, amd64)	5m 26s
staticcheck (windows, 386)	2m 54s
test (amd64, -coverprofile=/tmp/coverage.out)	3m 18s
vm	0s
test (amd64, -race, 1/3)	2m 56s
wasm	4m 12s
test (amd64, -race, 2/3)	2m 37s
windows	3m 52s
test (amd64, -race, 3/3)	2m 58s
test (386)	3m 27s
check_mergeability	3s
notify_slack	8s
	2h 1m 58s

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