chore(deps-dev): bump vite from 6.4.1 to 6.4.2 in /frontend (#44)

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 6.4.1 to 6.4.2.
- [Release notes](https://github.com/vitejs/vite/releases)
- [Changelog](https://github.com/vitejs/vite/blob/v6.4.2/packages/vite/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite/commits/v6.4.2/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 6.4.2
  dependency-type: direct:development
...

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frontend/package.json

@@ -44,7 +44,7 @@
     "prettier": "^3.8.1",
     "typescript": "~5.6.2",
     "typescript-eslint": "^8.57.2",
-    "vite": "^6.0.0",
+    "vite": "^6.4.2",
     "vitest": "^4.1.1"
   }
 }