chore(deps-dev): bump @vue/tsconfig from 0.8.1 to 0.9.1 in /frontend

Bumps [@vue/tsconfig](https://github.com/vuejs/tsconfig) from 0.8.1 to 0.9.1.
- [Release notes](https://github.com/vuejs/tsconfig/releases)
- [Commits](vuejs/tsconfig@v0.8.1...v0.9.1)

---
updated-dependencies:
- dependency-name: "@vue/tsconfig"
  dependency-version: 0.9.1
  dependency-type: direct:development
  update-type: version-update:semver-minor
...

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

Author: dependabot[bot]

frontend/package.json

@@ -48,7 +48,7 @@
         "@types/node": "^24.12.2",
         "@types/qrcode": "^1.5.6",
         "@vitejs/plugin-vue": "^6.0.6",
-        "@vue/tsconfig": "^0.8.1",
+        "@vue/tsconfig": "^0.9.1",
         "openapi-typescript": "^7.13.0",
         "openapi-zod-client": "^1.18.3",
         "tw-animate-css": "^1.4.0",