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Validate `checkout_path` input in `analyze` action #9010

Job	Run time
Ruby analysis (ubuntu-latest, nightly-latest)	40s
Ruby analysis (macos-latest, linked)	1m 8s
Ruby analysis (ubuntu-latest, linked)	45s
Ruby analysis (macos-latest, default)	1m 17s
Ruby analysis (ubuntu-latest, default)	45s
Ruby analysis (macos-latest, nightly-latest)	1m 13s
	5m 48s