chore: Bump vuetify from 3.11.3 to 3.11.8 in /frontend

Bumps [vuetify](https://github.com/vuetifyjs/vuetify/tree/HEAD/packages/vuetify) from 3.11.3 to 3.11.8.
- [Release notes](https://github.com/vuetifyjs/vuetify/releases)
- [Commits](https://github.com/vuetifyjs/vuetify/commits/v3.11.8/packages/vuetify)

---
updated-dependencies:
- dependency-name: vuetify
  dependency-version: 3.11.8
  dependency-type: direct:production
  update-type: version-update:semver-patch
...

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

Author: dependabot[bot]

frontend/package-lock.json

@@ -21,7 +21,7 @@
     "vue": "^3.5.28",
     "vue-chartjs": "^5.3.3",
     "vue-router": "^4.6.4",
-    "vuetify": "^3.11.3"
+    "vuetify": "^3.11.8"
   },
   "devDependencies": {
     "@eslint/js": "^9.39.2",