Client update needed to match WebSocket spec changes

[client-library-maintainer]

A diff between this client library's spec and our hosted spec was found. The client may need an update to match any changes in our API. See the diff below:

--- https://raw.githubusercontent.com/polygon-io/client-jvm/master/.polygon/websocket.json
+++ https://api.polygon.io/specs/websocket.json
@@ -5036,4 +5036,4 @@
       }
     }
   }
-}
\ No newline at end of file
+}

[justinpolygon]

Dupe of #146.