Add feature for forcing the `nightly` bundle in `dynamic` workflows #6937

Job	Run time
Ruby analysis (macos-latest, linked)	1m 9s
Ruby analysis (ubuntu-latest, linked)	45s
Ruby analysis (macos-latest, default)	1m 17s
Ruby analysis (ubuntu-latest, nightly-latest)	58s
Ruby analysis (macos-latest, nightly-latest)	1m 34s
Ruby analysis (ubuntu-latest, default)	44s
	6m 27s

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