v2.8.18-canary.17

<!-- Release notes generated using configuration in .github/release.yml at v2.8.18-canary.17 -->

What's Changed

Changelog

• refactor: Remove old output pipeline and document logging architecture by @anthonyshew in https://github.com/vercel/turborepo/pull/12348
• chore: Move section in CONTRIBUTING.md by @anthonyshew in https://github.com/vercel/turborepo/pull/12350

Full Changelog: https://github.com/vercel/turborepo/compare/v2.8.18-canary.16...v2.8.18-canary.17