docs: improve API testing feature #24409

Job	Run time
setup	1m 53s
setup	1m 53s
integration-tests-packages	6m 28s
integration-tests-packages	12m 4s
Shard (0) Unit Tests	8m 56s
Shard (0) Unit Tests	8m 56s
Shard (0) Module Integration Tests	6m 24s
Shard (0) Module Integration Tests	6m 24s
Shard (1) Unit Tests	6m 23s
Shard (1) Unit Tests	6m 23s
Shard (1) Module Integration Tests	5m 57s
Shard (1) Module Integration Tests	5m 57s
integration-tests-modules	1s
integration-tests-modules	1s
unit-tests	1s
unit-tests	1s
	1h 17m 42s

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