[core] Only one `LambdaRuntime.run()` can be called at a time (fix #507) #583

Job	Run time
musl	1m 36s
Semantic Version label check	5s
Unit tests / Construct unit test matrix	2s
Soundness / API breakage check	2s
Soundness / Documentation check	2s
Soundness / Unacceptable language check	1s
Soundness / License headers check	1s
Soundness / Broken symlinks check	3s
Soundness / Format check	3s
Soundness / Shell check	1s
Soundness / YAML lint check	1s
Soundness / Python lint check	1s
Swift 6 Language Mode / Swift 6 language mode	5s
Integration Tests / Test Examples/APIGateway on	0s
Integration Tests / Test Examples/APIGateway+LambdaAuthorizer on	0s
Integration Tests / Test Examples/BackgroundTasks on	0s
Integration Tests / Test Examples/HelloJSON on	0s
Integration Tests / Test Examples/HelloWorld on	0s
Integration Tests / Test Examples/ResourcesPackaging on	0s
Integration Tests / Test Examples/S3EventNotifier on	0s
Integration Tests / Test Examples/S3_AWSSDK on	0s
Integration Tests / Test Examples/S3_Soto on	0s
Integration Tests / Test Examples/Streaming on	0s
Integration Tests / Test Examples/Testing on	0s
Integration Tests / Test Examples/Tutorial on	0s
Integration Tests / Test archive plugin (HelloWorld)	0s
Integration Tests / Test archive plugin (ResourcesPackaging)	0s
Integration Tests / No dependencies on Foundation	1s
Unit tests / Unit tests / Linux (6.0)	1s
Unit tests / Unit tests / Linux (nightly-next)	1s
Unit tests / Unit tests / Linux (nightly-main)	1s
Integration Tests / Test archive plugin	1s
Integration Tests / Test Examples/${{ matrix.examples }} on ${{ matrix.swift.swift_version }}	1s
	2m 9s

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