Ruby

Make `untyped` not match any other type #1031

Job	Run time
ruby-versions / Generate Ruby versions	4s
build (3.2)	38s
build (3.3)	50s
build (3.4)	44s
build (head)	36s
build (truffleruby)	27s
build (truffleruby-head)	30s
	3m 49s

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