fix: upgrade mongoose from 8.4.0 to 8.18.1

Snyk has created this PR to upgrade mongoose from 8.4.0 to 8.18.1.

See this package in npm:
mongoose

See this project in Snyk:
https://app.snyk.io/org/nerds-github/project/ef708957-d107-4807-bb9b-ffb67ea15337?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

dashboard/package.json

@@ -27,7 +27,7 @@
     "highlight.js": "^11.10.0",
     "jsonwebtoken": "^9.0.2",
     "litlyx-js": "^1.0.2",
-    "mongoose": "^8.3.2",
+    "mongoose": "^8.18.1",
     "nodemailer": "^6.9.13",
     "nuxt": "^3.11.2",
     "nuxt-vue3-google-signin": "^0.0.11",