chore(deps-dev): bump typescript in /templates/react-router-app

Bumps [typescript](https://github.com/microsoft/TypeScript) from 5.9.2 to 6.0.2.
- [Release notes](https://github.com/microsoft/TypeScript/releases)
- [Commits](https://github.com/microsoft/TypeScript/compare/v5.9.2...v6.0.2)

---
updated-dependencies:
- dependency-name: typescript
  dependency-version: 6.0.2
  dependency-type: direct:development
  update-type: version-update:semver-major
...

Signed-off-by: dependabot[bot] <support@github.com>

templates/react-router-app/package.json

@@ -26,7 +26,7 @@
     "prettier": "^3.8.1",
     "prettier-plugin-tailwindcss": "^0.7.2",
     "tailwindcss": "^4.2.1",
-    "typescript": "^5.9.3",
+    "typescript": "^6.0.2",
     "vite": "^7.3.1",
     "vite-tsconfig-paths": "^5.1.4"
   }