build(deps-dev): Bump vite from 6.4.3 to 8.1.5 in /ui

Bumps [vite](https://github.com/vitejs/vite/tree/HEAD/packages/vite) from 6.4.3 to 8.1.5.
- [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/v8.1.5/packages/vite)

---
updated-dependencies:
- dependency-name: vite
  dependency-version: 8.1.5
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

ui/package.json

@@ -45,7 +45,7 @@
     "tailwindcss": "^4.3.2",
     "typescript": "^5.6.0",
     "typescript-eslint": "^8.62.1",
-    "vite": "^6.0.0",
+    "vite": "^8.1.5",
     "vitest": "^2.1.0",
     "vue-eslint-parser": "^10.0.0",
     "vue-tsc": "^2.1.0"