chore(frontend): bump @vitejs/plugin-vue in /services/frontend

Bumps [@vitejs/plugin-vue](https://github.com/vitejs/vite-plugin-vue/tree/HEAD/packages/plugin-vue) from 5.2.4 to 6.0.0.
- [Release notes](https://github.com/vitejs/vite-plugin-vue/releases)
- [Changelog](https://github.com/vitejs/vite-plugin-vue/blob/main/packages/plugin-vue/CHANGELOG.md)
- [Commits](https://github.com/vitejs/vite-plugin-vue/commits/[email protected]/packages/plugin-vue)

---
updated-dependencies:
- dependency-name: "@vitejs/plugin-vue"
  dependency-version: 6.0.0
  dependency-type: direct:development
  update-type: version-update:semver-major
...

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

Author: dependabot[bot]

services/frontend/package.json

@@ -39,7 +39,7 @@
     "@tailwindcss/postcss": "^4.1.10",
     "@tsconfig/node22": "^22.0.2",
     "@types/node": "^24.0.3",
-    "@vitejs/plugin-vue": "^5.2.4",
+    "@vitejs/plugin-vue": "^6.0.0",
     "@vue/eslint-config-prettier": "^10.2.0",
     "@vue/eslint-config-typescript": "^14.5.1",
     "@vue/tsconfig": "^0.7.0",