Support auto-detecting Actions workflows #7333

Job	Run time
Packaging: Action input (ubuntu-latest, default)	1m 19s
Packaging: Action input (windows-latest, default)	4m 3s
Packaging: Action input (macos-latest, nightly-latest)	1m 31s
Packaging: Action input (macos-latest, linked)	1m 32s
Packaging: Action input (macos-latest, default)	1m 30s
Packaging: Action input (windows-latest, nightly-latest)	3m 47s
Packaging: Action input (ubuntu-latest, nightly-latest)	1m 38s
Packaging: Action input (windows-latest, linked)	3m 55s
Packaging: Action input (ubuntu-latest, linked)	1m 26s
	20m 41s

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