[CI] Pull Request testing support via GitHub Actions #4

Job	Run time
Test / Windows (5.9 - windows-2022)	40m 50s
Test / Linux (5.8 - jammy)	22m 39s
Test / Windows (6.0 - windows-2022)	35m 35s
Test / Linux (5.9 - jammy)	22m 24s
Test / Windows (nightly - windows-2022)	31m 47s
Test / Linux (5.10 - jammy)	21m 47s
Test / Windows (nightly-6.0 - windows-2022)	33m 30s
Test / Linux (6.0 - jammy)	20m 37s
Test / Linux (nightly-main - jammy)	19m 11s
Test / Linux (nightly-6.0 - jammy)	20m 50s
Soundness / API breakage check	1m 13s
Soundness / Documentation check	0s
Soundness / Broken symlinks check	3s
Soundness / Format check	20m 2s
Soundness / License headers check	0s
Soundness / Python lint check	0s
Soundness / Shell check	0s
Soundness / Unacceptable language check	4s
Soundness / YAML lint check	5s
	4h 50m 37s

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