fix(deps): update dependency vuetify to v3.8.7

Author: renovate[bot]

frontend/package-lock.json

@@ -20,7 +20,7 @@
     "sass": "1.87.0",
     "vue": "3.5.13",
     "vue-router": "4.5.1",
-    "vuetify": "3.8.3"
+    "vuetify": "3.8.7"
   },
   "devDependencies": {
     "@babel/types": "7.27.1",