chore(deps): update dependency @vitejs/plugin-vue to v6

Author: renovate[bot]

frontend/package-lock.json

@@ -24,7 +24,7 @@
   "devDependencies": {
     "@tsconfig/node22": "^22.0.1",
     "@types/node": "^22.14.0",
-    "@vitejs/plugin-vue": "^5.2.3",
+    "@vitejs/plugin-vue": "^6.0.0",
     "@vue/eslint-config-prettier": "^10.2.0",
     "@vue/eslint-config-typescript": "^14.5.0",
     "@vue/tsconfig": "^0.8.0",