Ruby

See scenario/rbs/param-default-type.rb #1240

Job	Run time
ruby-versions / Generate Ruby versions	4s
build (4.0)	40s
build (head)	40s
build (truffleruby)	35s
build (truffleruby-head)	43s
build (3.3)	50s
build (3.4)	51s
	4m 23s

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