[CI] Pull Request testing support via GitHub Actions #6

Job	Run time
Test / Linux (5.8 - jammy)	22m 53s
Test / Windows (5.9 - windows-2022)	39m 47s
Test / Windows (6.0 - windows-2022)	37m 32s
Test / Linux (5.9 - jammy)	22m 18s
Test / Windows (nightly - windows-2019)	35m 2s
Test / Linux (5.10 - jammy)	21m 58s
Test / Windows (nightly-6.0 - windows-2019)	33m 36s
Test / Linux (6.0 - jammy)	20m 40s
Test / Linux (nightly-main - jammy)	19m 18s
Test / Linux (nightly-6.0 - jammy)	20m 18s
Soundness / Broken symlinks check	3s
Soundness / API breakage check	1m 24s
Soundness / Documentation check	0s
Soundness / Format check	0s
Soundness / License headers check	0s
Soundness / Python lint check	0s
Soundness / Shell check	0s
Soundness / Unacceptable language check	5s
Soundness / YAML lint check	4s
	4h 34m 58s

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