Cache archive symlink reads prevented

<!-- Release notes generated using configuration in .github/release.yml at v2.9.15-canary.3 -->

What's Changed

Changelog

• ci: Sign macOS release binaries by @anthonyshew in https://github.com/vercel/turborepo/pull/12811
• release(turborepo): 2.9.15-canary.2 by @github-actions[bot] in https://github.com/vercel/turborepo/pull/12812
• fix: Prevent cache archive symlink reads by @anthonyshew in https://github.com/vercel/turborepo/pull/12813

Full Changelog: https://github.com/vercel/turborepo/compare/v2.9.15-canary.2...v2.9.15-canary.3