feat(protocol): allow override of dial func

reach/client/protocol/v1/operations.go

@@ -18,6 +18,8 @@ type Operations struct {
 	client *socketio.Client
 	mutex  sync.RWMutex
 	logger logger.Logger
+
+	dial protocol.DialFunc
 }
 
 // Close implements protocol.Operations.
@@ -49,12 +51,12 @@ func (o *Operations) Connect(ctx context.Context) error {
 		o.client.Close()
 	}
 
-	endpoint, err := socketio.EndpointFromHAddr(o.addr)
+	endpoint, err := socketio.EndpointFromAddr(o.addr)
 	if err != nil {
 		return errors.WithStack(err)
 	}
 
-	client := socketio.NewClient(endpoint)
+	client := socketio.NewClient(endpoint, socketio.WithDialFunc(socketio.DialFunc(o.dial)))
 
 	o.logger.Debug("connecting", logger.Attr("endpoint", endpoint))