Merge pull request #464 from eregon/truffleruby-benchmark-ci #1652

Job	Run time
benchmark-ractor-only (head)	40s
benchmark-run-once	1m 36s
benchmark-ractor (head)	6m 57s
benchmark-graph	57s
benchmark-default (truffleruby, --excludes=knucleotide,lobsters,railsbench,ruby-lsp,shipit)	12m 6s
benchmark-default (head)	14m 53s
test (head)	53s
test (truffleruby)	1m 53s
benchmark-default (ruby)	15m 20s
test (ruby)	53s
all-tests	3s
	56m 11s

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