Merge pull request #468 from ruby/truffleruby-remove-railsbench-exclude #1672

Job	Run time
benchmark-ractor-only (head)	37s
benchmark-ractor (head)	6m 49s
benchmark-default (truffleruby, --excludes=knucleotide,lobsters,ruby-lsp,shipit)	13m 27s
test (ruby)	57s
benchmark-run-once	1m 41s
benchmark-graph	50s
test (head)	46s
benchmark-default (head)	13m 15s
benchmark-default (ruby)	13m 11s
test (truffleruby)	1m 42s
all-tests	4s
	53m 19s

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