align SPM flag name to what is documented #269

Job	Run time
Soundness / License headers check	8s
Soundness / Documentation check	2m 54s
Soundness / API breakage check	2m 10s
Soundness / Unacceptable language check	3s
Soundness / Broken symlinks check	2s
Soundness / Format check	2m 32s
Soundness / Shell check	0s
Soundness / YAML lint check	4s
Swift 6 Language Mode / Swift 6 language mode	1m 7s
Integration Tests / Test archive plugin	2m 40s
Integration Tests / Test Examples/HelloWorld on 6.0.1-amazonlinux2	1m 29s
Soundness / Python lint check	0s
Integration Tests / Test Examples/APIGateway on 6.0.1-amazonlinux2	1m 26s
Integration Tests / Test Examples/S3_AWSSDK on 6.0.1-amazonlinux2	3m 53s
Integration Tests / Test Examples/S3_Soto on 6.0.1-amazonlinux2	4m 28s
Unit tests / Unit tests / Linux (5.9)	21s
Unit tests / Unit tests / Linux (5.10)	23s
Unit tests / Unit tests / Linux (6.0)	1m 36s
Unit tests / Unit tests / Linux (nightly-6.0)	2m 31s
Unit tests / Unit tests / Linux (nightly-main)	2m 18s
	30m 5s

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