chore(deps): update dependency @types/express to v5

Author: renovate[bot]

backend/package.json

@@ -57,7 +57,7 @@
     "@nestjs/cli": "10.4.5",
     "@nestjs/schematics": "10.1.4",
     "@nestjs/testing": "10.4.4",
-    "@types/express": "4.17.21",
+    "@types/express": "5.0.0",
     "@types/jest": "29.5.13",
     "@types/node": "20.16.11",
     "@types/pg": "8.11.10",