fix client https server with query

[BenLocal]

1. When use NewHTTPConnection function connecting to the service, the url contains query, then negotiate path will be error eg: https://localhost:8088/hub/chat?uid=a to negotiate path is https://localhost:8088/hub/chat?uid=a/negotiate

2. When connecting to https service, I pass in custom httpConn.client with transport, but in case of WebSockets, websocket.DialOptions does not set custom httpConn.client eg：

   conn, err := signalr.NewHTTPConnection(
       ctx,
       url,
       signalr.WithHTTPClient(&http.Client{
           Transport: &http.Transport{
               TLSClientConfig: &tls.Config{
                   InsecureSkipVerify: true,
               },
           },
       }),