feat(checkbox/group): s2 token migration, control spacing, subtle color changes #11655

Job	Run time
Capture changed-files	2s
Testing	0s
Publish / Publish	5m 10s
Compare / Fetch & validate build artifacts (aramos-adobe/css1016-checkbox-group-s2-migration)	3m 30s
Compare / Fetch & validate build artifacts (spectrum-two)	3m 31s
Verify (macos-latest, 20) / Build (macos-latest, 20, false)	2m 42s
Verify (ubuntu-latest, 20) / Build (ubuntu-latest, 20, false)	3m 22s
Plugin tests	0s
Lint / Lint	3m 47s
Compare / Compare compiled assets	55s
	22m 59s

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