test

Merge pull request #491 from ydah/ruby34 #1463

Job	Run time
test-memory (head)	29s
check-misc (head)	8s
steep-check (head)	10s
test-ruby (head, master)	6m 15s
test-windows (head)	2m 45s
test-ruby (3.0, master)	6m 15s
ruby-versions / Generate Ruby versions	3s
test-cpp (head, g++)	11s
test (2.5)	28s
test-cpp (head, clang++)	11s
test (2.6)	24s
test (2.7)	25s
test (3.0)	20s
test (3.1)	16s
test (3.2)	14s
test (3.3)	19s
test (head)	16s
	19m 9s

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