fix: upgrade mongodb from 6.8.1 to 6.9.0

Snyk has created this PR to upgrade mongodb from 6.8.1 to 6.9.0.

See this package in npm:
mongodb

See this project in Snyk:
https://app.snyk.io/org/zntb/project/43577c06-0901-4ae3-8957-c3c1c1c5e11b?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

package-lock.json

@@ -11,7 +11,7 @@
   "license": "ISC",
   "dependencies": {
     "express": "^4.21.0",
-    "mongodb": "^6.8.1",
+    "mongodb": "^6.9.0",
     "nodemon": "^3.0.1"
   }
 }