PR checks: support collections of workflows #417

Job	Run time
Quality queries input (ubuntu-latest, nightly-latest)	1m 13s
Quality queries input (windows-latest, nightly-latest)	3m 18s
Quality queries input (windows-latest, linked)	3m 12s
Quality queries input (macos-latest, linked)	1m 6s
Quality queries input (macos-latest, nightly-latest)	1m 48s
Quality queries input (ubuntu-latest, linked)	1m 12s
	11m 49s

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