go.toolchain.rev: bump from Go 1.23.1 to Go 1.23.3 #7

Job	Run time
android	56s
cross (linux, arm64)	5m 37s
cross (linux, 386)	5m 31s
crossmin (plan9, amd64)	55s
cross (linux, loong64)	5m 37s
crossmin (aix, ppc64)	1m 3s
cross (linux, arm, 5)	5m 16s
cross (linux, arm, 7)	5m 19s
depaware	29s
fuzz	0s
cross (darwin, amd64)	5m 18s
cross (darwin, arm64)	5m 16s
go_generate	1m 6s
cross (windows, amd64)	5m 3s
go_mod_tidy	29s
ios	45s
cross (windows, arm64)	5m 6s
licenses	7s
cross (freebsd, amd64)	5m 18s
privileged	46s
race-build	6m 27s
cross (openbsd, amd64)	5m 18s
race-root-integration (1/4)	1m 54s
staticcheck (linux, amd64)	3m 35s
race-root-integration (2/4)	1m 58s
staticcheck (windows, amd64)	3m 33s
tailscale_go	22s
race-root-integration (3/4)	1m 50s
test (amd64, -coverprofile=/tmp/coverage.out)	8m 37s
staticcheck (darwin, amd64)	3m 35s
race-root-integration (4/4)	1m 56s
test (amd64, -race, 1/3)	8m 31s
staticcheck (windows, 386)	3m 29s
test (amd64, -race, 2/3)	8m 25s
vm	0s
test (amd64, -race, 3/3)	8m 37s
wasm	7m 37s
windows	9m 4s
test (386)	6m 50s
check_mergeability	1s
notify_slack	1s
	2h 31m 37s

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