fix: BackEnd/package.json & BackEnd/package-lock.json to reduce vulne…

…rabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-MONGOOSE-8446504
- https://snyk.io/vuln/SNYK-JS-PATHTOREGEXP-8482416

BackEnd/package.json

@@ -23,14 +23,14 @@
         "cors": "^2.8.5",
         "csurf": "^1.11.0",
         "dotenv": "^16.4.5",
-        "express": "^4.21.0",
+        "express": "^4.21.2",
         "express-async-handler": "^1.2.0",
         "express-rate-limit": "^7.4.0",
         "express-session": "^1.18.0",
         "find-config": "^1.0.0",
         "helmet": "^7.1.0",
         "jsonwebtoken": "^9.0.2",
-        "mongoose": "^8.6.0",
+        "mongoose": "^8.8.3",
         "nodemon": "^3.0.0",
         "passport": "^0.7.0",
         "passport-google-oauth20": "^2.0.0"