Turborepo v2.8.20

<!-- Release notes generated using configuration in .github/release.yml at v2.8.20 -->

What's Changed

Changelog

• fix: Prevent stdin from being dropped for persistent tasks in stream mode by @anthonyshew in https://github.com/vercel/turborepo/pull/12394

Full Changelog: https://github.com/vercel/turborepo/compare/v2.8.19...v2.8.20