chore: Update CODEOWNERS for helper gems #2613

Job	Run time
kafka / racecar / ubuntu-latest	14m 48s
other / dalli / ubuntu-latest	2m 33s
kafka / rdkafka / ubuntu-latest	15m 28s
mysql / mysql2 / ubuntu-latest	1m 24s
other / mongo / ubuntu-latest	2m 45s
kafka / ruby_kafka / ubuntu-latest	5m 40s
mysql / trilogy / ubuntu-latest	1m 6s
postgresql / pg / ubuntu-latest	3m 11s
rabbitmq / bunny / ubuntu-latest	1m 0s
postgresql / que / ubuntu-latest	2m 0s
redis / redis / ubuntu-latest	2m 3s
redis / resque / ubuntu-latest	1m 55s
redis / sidekiq / ubuntu-latest	6m 5s
	59m 58s

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