build(deps-dev): bump turbo from 2.6.1 to 2.9.6 (#165)

Bumps [turbo](https://github.com/vercel/turborepo) from 2.6.1 to 2.9.6.
- [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/v2.6.1...v2.9.6)

---
updated-dependencies:
- dependency-name: turbo
  dependency-version: 2.9.6
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

Signed-off-by: dependabot[bot] <support@github.com>
Co-authored-by: dependabot[bot] <49699333+dependabot[bot]@users.noreply.github.com>

package.json

@@ -13,7 +13,7 @@
   "devDependencies": {
     "@biomejs/biome": "2.3.8",
     "@tsconfig/strictest": "2.0.5",
-    "turbo": "2.6.1"
+    "turbo": "2.9.6"
   },
   "engines": {
     "node": ">=22"