Follow-up cleanup of GitHub Actions migration #23

Job	Run time
Samples / Linux (5.9)	1m 24s
Samples / Linux (5.10)	1m 17s
Samples / Linux (6.0)	1m 32s
Samples / Linux (nightly-6.0)	1m 33s
Samples / Linux (nightly-main)	1m 32s
Samples / Windows (6.0)	2s
Samples / Windows (nightly-6.0)	3s
Samples / Windows (nightly-main)	3s
Soundness / API breakage check	0s
Soundness / Broken symlinks check	2s
Soundness / Documentation check	1m 22s
Soundness / Format check	35s
Soundness / License headers check	3s
Soundness / Python lint check	6s
Soundness / Shell check	33s
Soundness / Unacceptable language check	5s
Soundness / YAML lint check	3s
Unit tests / Unit tests / Linux (5.9)	1m 29s
Unit tests / Unit tests / Linux (5.10)	1m 28s
Unit tests / Unit tests / Linux (6.0)	1m 28s
Unit tests / Unit tests / Linux (nightly-6.0)	1m 29s
Unit tests / Unit tests / Linux (nightly-main)	1m 29s
Unit tests / Unit tests / Windows (6.0)	2s
Unit tests / Unit tests / Windows (nightly-6.0)	1s
Unit tests / Unit tests / Windows (nightly-main)	3s
	17m 44s

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