Show --zjit-stats in the summary table #1812

Job	Run time
benchmark-graph	47s
benchmark-ractor-only (head)	39s
benchmark-ractor (head)	6m 43s
benchmark-run-once	1m 37s
test (head)	53s
test (ruby)	50s
benchmark-default (truffleruby, --excludes=knucleotide,lobsters,ruby-lsp,shipit)	13m 38s
test (truffleruby)	1m 49s
benchmark-default (head)	12m 23s
benchmark-default (ruby)	11m 46s
all-tests	2s
	51m 7s

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