syz-cluster: improve the status distribution graph #17609

Job	Run time
build	3m 24s
aux	3m 57s
dashboard	2m 14s
arch (presubmit_arch_windows)	3m 37s
race	7m 26s
arch (presubmit_arch_freebsd)	6m 28s
arch (presubmit_arch_darwin)	3m 44s
arch (presubmit_arch_netbsd)	3m 53s
race_dashboard	3m 22s
arch (presubmit_arch_linux)	10m 18s
arch (presubmit_arch_openbsd)	3m 39s
gvisor	3m 48s
old	6m 56s
arch (presubmit_arch_executor)	3m 15s
	1h 6m 1s

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