Support auto-detecting Actions workflows #7336

Job	Run time
Packaging: Config file (ubuntu-latest, linked)	1m 30s
Packaging: Config file (windows-latest, default)	4m 4s
Packaging: Config file (macos-latest, nightly-latest)	2m 24s
Packaging: Config file (windows-latest, linked)	4m 15s
Packaging: Config file (ubuntu-latest, default)	1m 33s
Packaging: Config file (ubuntu-latest, nightly-latest)	1m 27s
Packaging: Config file (windows-latest, nightly-latest)	7m 45s
Packaging: Config file (macos-latest, linked)	1m 30s
Packaging: Config file (macos-latest, default)	2m 9s
	26m 37s

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