Fix missing evt parameter in websocket logic (#5470)

Author: DaneEveritt

resources/scripts/plugins/Websocket.ts

@@ -34,7 +34,7 @@ export class Websocket extends EventEmitter {
                 this.emit('SOCKET_OPEN');
                 this.authenticate();
             },
-            onreconnect: () => {
+            onreconnect: (evt) => {
                 // We return code 4409 from Wings when a server is suspended. We've
                 // gone ahead and reserved 4400 as well here for future expansion without
                 // having to loop back around.