Support auto-detecting Actions workflows #4665

Job	Run time
Config export (ubuntu-latest, nightly-latest)	1m 22s
Config export (macos-latest, linked)	1m 49s
Config export (windows-latest, nightly-latest)	3m 36s
Config export (windows-latest, linked)	3m 5s
Config export (macos-latest, nightly-latest)	2m 4s
Config export (ubuntu-latest, linked)	1m 27s
	13m 23s

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