fix: package.json & package-lock.json to reduce vulnerabilities

The following vulnerabilities are fixed with an upgrade:
- https://snyk.io/vuln/SNYK-JS-VALIDATOR-13653476
- https://snyk.io/vuln/SNYK-JS-EXPRESS-14157151

package.json

@@ -25,9 +25,9 @@
     "connect-redis": "^8.1.0",
     "cookie-parser": "^1.4.7",
     "cors": "^2.8.5",
-    "express": "^5.1.0",
+    "express": "^5.2.0",
     "express-session": "^1.18.1",
-    "express-validator": "^7.2.1",
+    "express-validator": "^7.3.0",
     "helmet": "^8.1.0",
     "multer": "^2.0.1",
     "pg": "^8.16.0",