## Why
Versions of `ignore` differ in whether parallel walks report traversal errors at the depth boundary, making the test's expectation depend on the walker implementation.
## What changed
Keep the denied directory within the bounded scan depth in `unreadable_glob_traversal_errors_fail_closed`. Require both bounded and unbounded scans to fail with the denied path and permission error, replacing the CPU-count-dependent assertion.
GitOrigin-RevId: 4ed97253247e0c032648ebc6d4be2a97c3ab261a