ci: Move to GitHub Actions #2

Job	Run time
Soundness / Broken symlinks check	4s
Soundness / API breakage check	1m 19s
Soundness / Documentation check	1m 16s
Soundness / Format check	33s
Soundness / License headers check	8s
Soundness / Shell check	32s
Soundness / Unacceptable language check	9s
Soundness / Python lint check	5s
Soundness / YAML lint check	6s
Cxx interop / Cxx interop / Linux (5.9)	48s
Cxx interop / Cxx interop / Linux (5.10)	49s
Cxx interop / Cxx interop / Linux (6.0)	1m 0s
Cxx interop / Cxx interop / Linux (nightly-6.0)	1m 3s
Cxx interop / Cxx interop / Linux (nightly-main)	1m 7s
Cxx interop / Cxx interop / Windows (6.0)	1s
Cxx interop / Cxx interop / Windows (nightly-6.0)	2s
Cxx interop / Cxx interop / Windows (nightly-main)	3s
Unit tests / Unit tests / Linux (5.9)	1m 16s
Unit tests / Unit tests / Windows (6.0)	1s
Unit tests / Unit tests / Linux (5.10)	1m 16s
Unit tests / Unit tests / Windows (nightly-6.0)	1s
Unit tests / Unit tests / Windows (nightly-main)	3s
Unit tests / Unit tests / Linux (6.0)	1m 31s
Unit tests / Unit tests / Linux (nightly-6.0)	1m 47s
Unit tests / Unit tests / Linux (nightly-main)	1m 39s
	16m 39s

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