Add support for validation jobs to `sync.ts`, and refactor #7163

Job	Run time
Ruby analysis (ubuntu-latest, linked)	51s
Ruby analysis (macos-latest, default)	1m 14s
Ruby analysis (macos-latest, nightly-latest)	53s
Ruby analysis (macos-latest, linked)	1m 3s
Ruby analysis (ubuntu-latest, default)	51s
Ruby analysis (ubuntu-latest, nightly-latest)	47s
	5m 39s

Provide feedback