Add `elasticsearch.capture_cluster_name` config #6421

Job	Run time
run_rubocop	25s
multiverse_services_1 (2.4.10)	2m 43s
multiverse_services_1 (3.4.1)	3m 37s
unit_tests (2.4.10)	5m 15s
multiverse_services_2 (2.4.10)	2m 13s
multiverse (agent, 2.4.10)	2m 15s
unit_tests (3.4.1)	4m 54s
multiverse (agent, 3.4.1)	3m 31s
multiverse_services_2 (3.4.1)	3m 22s
multiverse (ai, 2.4.10)	1m 10s
infinite_tracing (2.7.8)	34s
multiverse (ai, 3.4.1)	1m 26s
multiverse (background, 2.4.10)	2m 0s
multiverse_services_kafka (2.4.10)	2m 24s
multiverse (background, 3.4.1)	1m 55s
infinite_tracing (3.4.1)	10m 7s
multiverse_services_kafka (3.4.1)	5m 36s
multiverse (background_2, 2.4.10)	4m 17s
multiverse (background_2, 3.4.1)	6m 7s
multiverse_services_mysql_pg (2.4.10)	3m 1s
multiverse (frameworks, 2.4.10)	1m 53s
multiverse_services_mysql_pg (3.4.1)	3m 5s
multiverse (frameworks, 3.4.1)	3m 38s
multiverse (httpclients, 2.4.10)	2m 12s
multiverse (httpclients, 3.4.1)	2m 27s
multiverse (httpclients_2, 2.4.10)	2m 27s
multiverse (httpclients_2, 3.4.1)	2m 3s
multiverse (rails, 2.4.10)	2m 53s
multiverse (rails, 3.4.1)	5m 45s
multiverse (rest, 2.4.10)	3m 51s
multiverse (rest, 3.4.1)	5m 57s
simplecov	17s
	1h 43m 20s

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