feat: migrate gRPC instrumentation from standardrb to Rubocop #4130

Job	Run time
other / dalli / ubuntu-latest	2m 44s
kafka / racecar / ubuntu-latest	12m 13s
other / mongo / ubuntu-latest	2m 59s
kafka / rdkafka / ubuntu-latest	21m 2s
mysql / mysql2 / ubuntu-latest	1m 40s
mysql / trilogy / ubuntu-latest	1m 29s
kafka / ruby_kafka / ubuntu-latest	5m 48s
postgresql / pg / ubuntu-latest	3m 48s
postgresql / que / ubuntu-latest	2m 29s
rabbitmq / bunny / ubuntu-latest	1m 13s
redis / redis / ubuntu-latest	1m 8s
redis / resque / ubuntu-latest	1m 55s
redis / sidekiq / ubuntu-latest	6m 15s
	1h 4m 43s

Provide feedback