Migrate to GitHub Actions #4

Job	Run time
Soundness / Broken symlinks check	2s
Soundness / API breakage check	3m 38s
Soundness / Documentation check	2m 20s
Soundness / Format check	33s
Soundness / License headers check	8s
Soundness / Shell check	36s
Soundness / Python lint check	7s
Soundness / Unacceptable language check	2s
Soundness / YAML lint check	3s
Cxx interop / Cxx interop / Linux (5.9)	2m 5s
Cxx interop / Cxx interop / Windows (6.0)	3s
Cxx interop / Cxx interop / Linux (5.10)	2m 5s
Cxx interop / Cxx interop / Windows (nightly-6.0)	1s
Cxx interop / Cxx interop / Linux (6.0)	2m 16s
Cxx interop / Cxx interop / Windows (nightly-main)	2s
Cxx interop / Cxx interop / Linux (nightly-6.0)	2m 46s
Cxx interop / Cxx interop / Linux (nightly-main)	2m 59s
Unit tests / Unit tests / Linux (5.9)	2m 10s
Unit tests / Unit tests / Windows (6.0)	3s
Unit tests / Unit tests / Linux (5.10)	2m 7s
Unit tests / Unit tests / Windows (nightly-6.0)	1s
Unit tests / Unit tests / Linux (6.0)	2m 13s
Unit tests / Unit tests / Windows (nightly-main)	2s
Unit tests / Unit tests / Linux (nightly-6.0)	2m 45s
Unit tests / Unit tests / Linux (nightly-main)	2m 49s
	31m 56s

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