Support `Ractor#value` (#134) #468

Job	Run time
ruby-versions / Generate Ruby versions	2s
ubuntu-24.04 2.7	50s
ubuntu-24.04 3.0	24s
ubuntu-24.04 3.1	19s
ubuntu-24.04 3.2	25s
ubuntu-24.04 3.3	22s
ubuntu-24.04 3.4	13s
ubuntu-24.04 debug	28s
ubuntu-24.04 head	21s
ubuntu-24.04 jruby-head	1m 15s
ubuntu-24.04 truffleruby-head	38s
ubuntu-22.04 2.7	49s
ubuntu-22.04 3.0	23s
ubuntu-22.04 3.1	23s
ubuntu-22.04 3.2	35s
ubuntu-22.04 3.3	1m 1s
ubuntu-22.04 3.4	21s
ubuntu-22.04 debug	28s
ubuntu-22.04 head	19s
ubuntu-22.04 jruby-head	1m 27s
ubuntu-22.04 truffleruby-head	39s
	11m 42s

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