fix: upgrade mongodb-memory-server from 10.1.3 to 10.2.0

Snyk has created this PR to upgrade mongodb-memory-server from 10.1.3 to 10.2.0.

See this package in npm:
mongodb-memory-server

See this project in Snyk:
https://app.snyk.io/org/nodeshift-agg/project/0865fbfa-c5be-44cc-ab70-e2f03f8f4eb1?utm_source=github&utm_medium=referral&page=upgrade-pr

Author: snyk-bot

backend/package-lock.json

@@ -22,7 +22,7 @@
   "devDependencies": {
     "chai": "^4.4.1",
     "mocha": "^11.7.1",
-    "mongodb-memory-server": "^10.1.3",
+    "mongodb-memory-server": "^10.2.0",
     "nyc": "^17.0.0",
     "supertest": "^7.1.3"
   },