v2.8.11-canary.21

<!-- Release notes generated using configuration in .github/release.yml at v2.8.11-canary.21 -->

What's Changed

Changelog

• chore: Add tracing spans to uninstrumented hot path functions by @anthonyshew in https://github.com/vercel/turborepo/pull/11959

Full Changelog: https://github.com/vercel/turborepo/compare/v2.8.11-canary.20...v2.8.11-canary.21