v2.9.4-canary.5

<!-- Release notes generated using configuration in .github/release.yml at v2.9.4-canary.5 -->

What's Changed

Changelog

• fix: Validate engine concurrency after task-level filtering by @anthonyshew in https://github.com/vercel/turborepo/pull/12540

Full Changelog: https://github.com/vercel/turborepo/compare/v2.9.4-canary.4...v2.9.4-canary.5