chore(deps): bump the vite group in /frontend with 2 updates

Bumps the vite group in /frontend with 2 updates: [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) and [vitest](https://github.com/vitest-dev/vitest/tree/HEAD/packages/vitest).


Updates `vite` from 5.4.12 to 6.0.11
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/main/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v6.0.11/packages/vite)

Updates `vitest` from 2.1.8 to 3.0.4
- [Release notes](https://github.com/vitest-dev/vitest/releases)
- [Commits](https://github.com/vitest-dev/vitest/commits/v3.0.4/packages/vitest)

---
updated-dependencies:
- dependency-name: vite
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vite
- dependency-name: vitest
  dependency-type: direct:development
  update-type: version-update:semver-major
  dependency-group: vite
...

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

frontend/package.json

@@ -46,7 +46,7 @@
     "jsdom": "^26.0.0",
     "typescript": "^5.7.3",
     "typescript-eslint": "^8.21.0",
-    "vite": "^5.4.12",
-    "vitest": "^2.1.8"
+    "vite": "^6.0.11",
+    "vitest": "^3.0.4"
   }
 }