updated pg version to fix db call hanging

Author: FrancisBourgouin

package-lock.json

@@ -16,7 +16,7 @@
     "dotenv": "^7.0.0",
     "express": "^4.16.4",
     "helmet": "^3.18.0",
-    "pg": "^7.8.1",
+    "pg": "^8.5.0",
     "socket.io": "^2.2.0",
     "ws": "^7.0.0"
   },