PR checks: support collections of workflows #416

Job	Run time
Quality queries input (ubuntu-latest, nightly-latest)	1m 14s
Quality queries input (windows-latest, linked)	2m 53s
Quality queries input (macos-latest, linked)	1m 33s
Quality queries input (ubuntu-latest, linked)	1m 8s
Quality queries input (macos-latest, nightly-latest)	1m 36s
Quality queries input (windows-latest, nightly-latest)	3m 17s
	11m 41s

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