Tests

Merge pull request #548 from dblock/fix-channel-id #1424

Job	Run time
test (ruby=2.7)	34s
test (ruby=2.7, concurrency=async-websocket)	40s
test (ruby=3.0)	25s
test (ruby=3.1)	23s
test (ruby=3.2)	20s
test (ruby=3.3)	23s
test (ruby=3.4)	30s
test (ruby=ruby-head)	23s
test (ruby=jruby-head)	2m 0s
coveralls	3s
	5m 41s

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