GitHub Actions to parity with existing CI #5

Job	Run time
Soundness / Documentation check	1m 36s
Soundness / API breakage check	2m 3s
Soundness / License headers check	5s
Soundness / Broken symlinks check	2s
Soundness / Unacceptable language check	4s
Soundness / YAML lint check	3s
Soundness / Format check	0s
Soundness / Python lint check	0s
Soundness / Shell check	0s
Cxx interop / Cxx interop / Windows (6.0)	1s
Cxx interop / Cxx interop / Linux (5.9)	1m 19s
Cxx interop / Cxx interop / Windows (nightly-6.0)	1s
Cxx interop / Cxx interop / Linux (5.10)	1m 18s
Cxx interop / Cxx interop / Windows (nightly-main)	2s
Cxx interop / Cxx interop / Linux (6.0)	1m 20s
Cxx interop / Cxx interop / Linux (nightly-6.0)	1m 58s
Unit tests / Unit tests / Linux (5.9)	3m 6s
Unit tests / Unit tests / Windows (6.0)	3s
Cxx interop / Cxx interop / Linux (nightly-main)	2m 0s
Unit tests / Unit tests / Linux (5.10)	3m 5s
Unit tests / Unit tests / Linux (6.0)	2m 39s
Unit tests / Unit tests / Windows (nightly-6.0)	2s
Unit tests / Unit tests / Linux (nightly-6.0)	3m 14s
Unit tests / Unit tests / Windows (nightly-main)	2s
Unit tests / Unit tests / Linux (nightly-main)	3m 2s
	27m 5s

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