chore(deps): update dependency mongoose to v8

Author: renovate[bot]

package-lock.json

@@ -23,7 +23,7 @@
     "dotenv": "^16.3.1",
     "express": "^4.18.2",
     "jsonwebtoken": "^9.0.1",
-    "mongoose": "^7.6.0",
+    "mongoose": "^8.0.0",
     "multer": "^1.4.5-lts.1"
   },
   "devDependencies": {