Ruby

Add timeout-minutes to CI workflow #1252

Job	Run time
ruby-versions / Generate Ruby versions	3s
build (3.3)	51s
build (truffleruby)	35s
build (truffleruby-head)	40s
build (4.0)	41s
build (head)	42s
build (3.4)	50s
	4m 22s

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