feat: brandshape restriction #5887

Job	Run time
Verify (packages/eslint-plugin)	53s
Verify (packages/components)	2m 55s
Verify (packages/styles)	49s
Verify (packages/tokens)	47s
Verify (packages/placeholders)	45s
Verify (packages/theming)	50s
Verify (packages/docs)	8m 28s
Verify Chromatic	0s
	15m 27s

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