build(deps-dev): bump turbo from 2.6.3 to 2.9.14

Bumps [turbo](https://github.com/vercel/turborepo) from 2.6.3 to 2.9.14.
- [Release notes](https://github.com/vercel/turborepo/releases)
- [Changelog](https://github.com/vercel/turborepo/blob/main/RELEASE.md)
- [Commits](https://github.com/vercel/turborepo/compare/v2.6.3...v2.9.14)

---
updated-dependencies:
- dependency-name: turbo
  dependency-version: 2.9.14
  dependency-type: direct:development
...

Signed-off-by: dependabot[bot] <[email protected]>

package.json

@@ -35,7 +35,7 @@
     "prettier": "^3.5.3",
     "rimraf": "^6.1.2",
     "supertest": "^7.1.4",
-    "turbo": "^2.6.0",
+    "turbo": "^2.9.14",
     "typescript": "^5.7.2",
     "typescript-eslint": "^8.48.0",
     "vitest": "^4.0.14",