v2.8.7-canary.3

<!-- Release notes generated using configuration in .github/release.yml at v2.8.7-canary.3 -->

What's Changed

Changelog

• feat: Add internal agents app for repo automation by @anthonyshew in https://github.com/vercel/turborepo/pull/11799
• chore: Add env vars by @anthonyshew in https://github.com/vercel/turborepo/pull/11800
• fix: Handle subpath package imports in turbo boundaries by @anthonyshew in https://github.com/vercel/turborepo/pull/11798

Full Changelog: https://github.com/vercel/turborepo/compare/v2.8.7-canary.2...v2.8.7-canary.3