[core] Only one `LambdaRuntime.run()` can be called at a time (fix #507) #573

Job	Run time
Semantic Version label check	20s
musl	1m 57s
Unit tests / Construct unit test matrix	13s
Soundness / API breakage check	2m 38s
Soundness / Documentation check	1m 48s
Soundness / Unacceptable language check	11s
Soundness / License headers check	10s
Soundness / Broken symlinks check	8s
Soundness / Format check	41s
Soundness / Shell check	37s
Soundness / YAML lint check	6s
Soundness / Python lint check	19s
Integration Tests / Test Examples/APIGateway on	1m 59s
Integration Tests / Test Examples/APIGateway+LambdaAuthorizer on	2m 1s
Integration Tests / Test Examples/BackgroundTasks on	1m 56s
Integration Tests / Test Examples/HelloJSON on	2m 18s
Integration Tests / Test Examples/HelloWorld on	2m 16s
Integration Tests / Test Examples/ResourcesPackaging on	2m 2s
Integration Tests / Test Examples/S3EventNotifier on	2m 0s
Integration Tests / Test Examples/S3_AWSSDK on	9m 23s
Integration Tests / Test Examples/S3_Soto on	7m 55s
Integration Tests / Test Examples/Streaming on	1m 57s
Integration Tests / Test Examples/Testing on	2m 20s
Integration Tests / Test Examples/Tutorial on	2m 15s
Integration Tests / Test archive plugin (HelloWorld)	3m 3s
Integration Tests / Test archive plugin (ResourcesPackaging)	3m 41s
Integration Tests / No dependencies on Foundation	2m 15s
Swift 6 Language Mode / Swift 6 language mode	1m 31s
Unit tests / Unit tests / Linux (6.0)	1m 28s
Unit tests / Unit tests / Linux (nightly-next)	1m 55s
Unit tests / Unit tests / Linux (nightly-main)	2m 14s
	1h 3m 37s

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