`no_repeat` option #1746

Job	Run time
ruby-versions / Generate Ruby versions	3s
test (2.7)	1m 46s
test (3.0)	1m 56s
test (3.1)	1m 55s
test (3.2)	1m 36s
test (3.3)	1m 39s
test (3.4)	1m 37s
test (debug)	4m 59s
test (head)	1m 34s
	17m 5s

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