Update dependency supertest to v5

Author: renovate-bot

package-lock.json

@@ -48,7 +48,7 @@
     "nodemon": "2.0.4",
     "prettier": "2.1.2",
     "subscriptions-transport-ws": "0.9.18",
-    "supertest": "4.0.2",
+    "supertest": "5.0.0",
     "ts-jest": "26.4.0",
     "ts-node": "9.0.0",
     "ts-node-dev": "1.0.0-pre.63",