Ruby

Add timeout-minutes to CI workflow (#364) #1259

Job	Run time
ruby-versions / Generate Ruby versions	6s
build (head)	42s
build (truffleruby)	39s
build (truffleruby-head)	41s
build (4.0)	41s
build (3.3)	51s
build (3.4)	53s
	4m 33s

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