Validate `record_custom_event` type #7065

Job	Run time
run_rubocop	33s
unit_tests (3.4.4)	6m 40s
infinite_tracing (2.7.8)	1m 25s
infinite_tracing (3.4.4)	1m 15s
unit_tests (2.6.10)	9m 9s
multiverse_services_mysql_pg (2.6.10)	5m 32s
multiverse_services_2 (3.4.4)	3m 19s
multiverse_services_mysql_pg (3.4.4)	1m 46s
multiverse_services_2 (2.6.10)	7m 21s
multiverse_services_elasticsearch (2.6.10)	5m 59s
multiverse_services_1 (3.4.4)	1m 52s
multiverse_services_kafka (2.6.10)	8m 47s
multiverse_services_1 (2.6.10)	5m 22s
multiverse_services_kafka (3.4.4)	9m 7s
multiverse_services_elasticsearch (3.4.4)	2m 10s
multiverse (agent, 3.4.4)	4m 6s
multiverse (ai, 2.6.10)	4m 30s
multiverse (ai, 3.4.4)	1m 12s
multiverse (agent, 2.6.10)	5m 34s
multiverse (rails, 3.4.4)	6m 43s
multiverse (background, 2.6.10)	4m 43s
multiverse (httpclients_2, 3.4.4)	2m 16s
multiverse (background, 3.4.4)	1m 28s
multiverse (background_2, 2.6.10)	7m 17s
multiverse (frameworks, 2.6.10)	5m 27s
multiverse (httpclients_2, 2.6.10)	6m 23s
multiverse (background_2, 3.4.4)	6m 45s
multiverse (httpclients, 2.6.10)	5m 42s
multiverse (httpclients, 3.4.4)	2m 26s
multiverse (hybrid_agent, 3.4.4)	55s
multiverse (rails, 2.6.10)	6m 14s
multiverse (hybrid_agent, 2.6.10)	4m 11s
multiverse (rest, 2.6.10)	7m 46s
multiverse (frameworks, 3.4.4)	4m 6s
multiverse (rest, 3.4.4)	6m 20s
simplecov	0s
	2h 44m 21s

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