Merge pull request #3153 from github/mbg/ci/improve-unit-tests #5829

Job	Run time
Ruby analysis (ubuntu-latest, default)	54s
Ruby analysis (ubuntu-latest, nightly-latest)	52s
Ruby analysis (ubuntu-latest, linked)	49s
Ruby analysis (macos-latest, default)	1m 11s
Ruby analysis (macos-latest, nightly-latest)	53s
Ruby analysis (macos-latest, linked)	1m 14s
	5m 53s

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