Add static SDK CI workflow #27

Job	Run time
Cxx interop / Construct Cxx interop matrix	3s
Unit tests / Construct unit test matrix	3s
Soundness / Documentation check	3m 3s
Soundness / Broken symlinks check	5s
Soundness / License headers check	2s
Soundness / API breakage check	4m 28s
Soundness / Unacceptable language check	3s
Soundness / Format check	33s
Soundness / Python lint check	4s
Soundness / Shell check	32s
Soundness / YAML lint check	3s
Cxx interop / Swift 6 language mode	2m 37s
Static SDK / Static SDK / Linux (latest-release Jammy)	3m 37s
Static SDK / Static SDK / Linux (main Jammy)	4m 25s
Unit tests / Unit tests / Linux (5.9)	2m 27s
Unit tests / Unit tests / Linux (5.10)	2m 23s
Cxx interop / Cxx interop / Linux (5.9)	2m 36s
Unit tests / Unit tests / Linux (6.0)	2m 48s
Unit tests / Unit tests / Linux (nightly-next)	3m 36s
Cxx interop / Cxx interop / Linux (5.10)	2m 31s
Unit tests / Unit tests / Linux (nightly-main)	3m 30s
Cxx interop / Cxx interop / Linux (6.0)	2m 48s
Cxx interop / Cxx interop / Linux (nightly-next)	3m 32s
Cxx interop / Cxx interop / Linux (nightly-main)	3m 32s
	49m 21s

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