[core] Only one `LambdaRuntime.run()` can be called at a time (fix #507) #620

Job	Run time
Semantic Version label check	7s
musl	1m 51s
Unit tests / Construct unit test matrix	6s
Integration Tests / Test archive plugin (ResourcesPackaging)	3m 3s
Integration Tests / Test archive plugin (HelloWorld)	2m 38s
Integration Tests / No dependencies on Foundation	2m 34s
Swift 6 Language Mode / Swift 6 language mode	1m 22s
Soundness / Documentation check	1m 52s
Integration Tests / Test Examples/HelloJSON on	1m 49s
Integration Tests / Test Examples/BackgroundTasks on	1m 53s
Integration Tests / Test Examples/HelloWorld on	1m 53s
Integration Tests / Test Examples/APIGateway+LambdaAuthorizer on	2m 4s
Integration Tests / Test Examples/S3_Soto on	7m 59s
Integration Tests / Test Examples/Streaming on	2m 15s
Soundness / API breakage check	2m 33s
Integration Tests / Test Examples/Testing on	1m 56s
Integration Tests / Test Examples/APIGateway on	2m 4s
Soundness / Unacceptable language check	9s
Integration Tests / Test Examples/Tutorial on	1m 57s
Soundness / Python lint check	10s
Integration Tests / Test Examples/S3EventNotifier on	1m 59s
Soundness / License headers check	5s
Integration Tests / Test Examples/S3_AWSSDK on	6m 45s
Integration Tests / Test Examples/ResourcesPackaging on	1m 48s
Soundness / Format check	40s
Soundness / YAML lint check	5s
Soundness / Broken symlinks check	5s
Soundness / Shell check	48s
Unit tests / Unit tests / Linux (nightly-main)	2m 4s
Unit tests / Unit tests / Linux (6.0)	1m 31s
Unit tests / Unit tests / Linux (nightly-next)	1m 59s
Unit tests / Unit tests / Linux (6.1)	1m 28s
	59m 32s

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