[core] Only one `LambdaRuntime.run()` can be called at a time (fix #507) #552

Job	Run time
Semantic Version label check	7s
musl	1m 33s
Unit tests / Construct unit test matrix	5s
Integration Tests / Test Examples/APIGateway on	2m 0s
Integration Tests / Test Examples/APIGateway+LambdaAuthorizer on	2m 1s
Integration Tests / Test Examples/BackgroundTasks on	1m 48s
Integration Tests / Test Examples/HelloJSON on	1m 46s
Integration Tests / Test Examples/HelloWorld on	1m 51s
Integration Tests / Test Examples/ResourcesPackaging on	1m 45s
Integration Tests / Test Examples/S3EventNotifier on	1m 56s
Integration Tests / Test Examples/S3_AWSSDK on	5m 13s
Integration Tests / Test Examples/S3_Soto on	6m 26s
Integration Tests / Test Examples/Streaming on	1m 56s
Integration Tests / Test Examples/Testing on	1m 57s
Integration Tests / Test Examples/Tutorial on	1m 50s
Integration Tests / Test archive plugin (HelloWorld)	2m 31s
Integration Tests / Test archive plugin (ResourcesPackaging)	2m 59s
Integration Tests / No dependencies on Foundation	2m 9s
Soundness / Broken symlinks check	6s
Soundness / Documentation check	1m 41s
Soundness / API breakage check	1m 41s
Soundness / Format check	40s
Soundness / Unacceptable language check	3s
Soundness / Python lint check	9s
Soundness / License headers check	4s
Soundness / Shell check	30s
Soundness / YAML lint check	4s
Swift 6 Language Mode / Swift 6 language mode	1m 21s
Unit tests / Unit tests / Linux (6.0)	1m 26s
Unit tests / Unit tests / Linux (nightly-next)	1m 35s
Unit tests / Unit tests / Linux (nightly-main)	1m 38s
	50m 51s

Provide feedback