release: Release 4 gems #2539

Job	Run time
kafka / racecar / ubuntu-latest	14m 51s
mysql / mysql2 / ubuntu-latest	1m 18s
kafka / rdkafka / ubuntu-latest	15m 20s
postgresql / pg / ubuntu-latest	3m 1s
mysql / trilogy / ubuntu-latest	1m 10s
kafka / ruby_kafka / ubuntu-latest	5m 31s
postgresql / que / ubuntu-latest	1m 54s
rabbitmq / bunny / ubuntu-latest	1m 3s
redis / redis / ubuntu-latest	2m 8s
other / dalli / ubuntu-latest	2m 32s
redis / resque / ubuntu-latest	1m 55s
other / mongo / ubuntu-latest	2m 27s
redis / sidekiq / ubuntu-latest	6m 12s
	59m 22s

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