test

Merge pull request #491 from ydah/ruby34 #543

Job	Run time
check-misc (head)	7s
steep-check (head)	11s
test-ruby (head, master)	5m 55s
test-ruby (3.0, master)	6m 1s
test-memory (head)	36s
test-windows (head)	1m 45s
ruby-versions / Generate Ruby versions	1s
test-cpp (head, g++)	13s
test (2.5)	24s
test-cpp (head, clang++)	21s
test (2.6)	25s
test (2.7)	30s
test (3.0)	16s
test (3.1)	12s
test (3.2)	14s
test (3.3)	12s
test (head)	12s
	17m 35s

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