Tests

Merge pull request #542 from dblock/added-ruby-3.4 #1409

Job	Run time
test (ruby=2.7)	38s
test (ruby=2.7, concurrency=async-websocket)	31s
test (ruby=3.0)	17s
test (ruby=3.1)	20s
test (ruby=3.2)	24s
test (ruby=3.3)	29s
test (ruby=3.4)	32s
test (ruby=ruby-head)	20s
test (ruby=jruby-head)	2m 0s
coveralls	3s
	5m 34s

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