add a github action #13

Job	Run time
License headers check	3s
Soundness / Documentation check	34s
Soundness / API breakage check	2m 14s
Soundness / Unacceptable language check	3s
Soundness / Broken symlinks check	3s
Soundness / Format check	41s
Soundness / License headers check	0s
Soundness / Shell check	0s
Soundness / YAML lint check	4s
Soundness / Python lint check	0s
Swift 6 Language Mode / Swift 6 language mode	1m 28s
Unit tests / Unit tests / Linux (5.9)	24s
Unit tests / Unit tests / Linux (5.10)	1m 27s
Unit tests / Unit tests / Linux (6.0)	1m 34s
Unit tests / Unit tests / Linux (nightly-6.0)	2m 6s
Unit tests / Unit tests / Linux (nightly-main)	2m 10s
	12m 51s

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