Ruby

Fix NoMethodError in CallBaseNode#modified_vars for anonymous rest (#… #1446

Job	Run time
ruby-versions / Generate Ruby versions	4s
build (truffleruby)	40s
build (4.0)	54s
build (3.4)	1m 5s
build (3.3)	1m 7s
build (head)	51s
	4m 41s

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