v2.9.7-canary.12

<!-- Release notes generated using configuration in .github/release.yml at v2.9.7-canary.12 -->

What's Changed

Examples

• examples: Add Ultracite example by @haydenbleasel in https://github.com/vercel/turborepo/pull/12615

Changelog

• fix: Preserve legacy Vercel auth compatibility by @anthonyshew in https://github.com/vercel/turborepo/pull/12629

Full Changelog: https://github.com/vercel/turborepo/compare/v2.9.7-canary.11...v2.9.7-canary.12