feat(boundaries): ignore nested workspaces #4049

Job	Run time
Find path changes	3s
Turborepo Integration (ubuntu-latest)	7m 6s
`kitchen-sink` example	0s
`basic` example	0s
Turborepo Integration (macos-13)	19m 20s
`non-monorepo` example	0s
Turborepo Integration (windows-latest)	22m 23s
Turborepo rust check	1m 33s
Rust lints	1m 37s
Turborepo Rust testing on ubuntu	1m 55s
`with-svelte` example	0s
Turborepo Rust testing on macos	15m 48s
`with-tailwind` example	0s
Turborepo Rust testing on windows	13m 42s
Turborepo Test Summary	1s
Cleanup / cleanup	5s
	1h 23m 33s

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