use utls instead of go-tls

tls.go

@@ -3,6 +3,7 @@ package gost
 import (
 	"crypto/tls"
 	"errors"
+	utls "github.com/refraction-networking/utls"
 	"net"
 	"sync"
 	"time"
@@ -269,7 +270,6 @@ func (l *mtlsListener) Close() error {
 // https://github.com/hashicorp/consul/blob/master/tlsutil/config.go
 func wrapTLSClient(conn net.Conn, tlsConfig *tls.Config, timeout time.Duration) (net.Conn, error) {
 	var err error
-	var tlsConn *tls.Conn
 
 	if timeout <= 0 {
 		timeout = HandshakeTimeout // default timeout
@@ -278,7 +278,10 @@ func wrapTLSClient(conn net.Conn, tlsConfig *tls.Config, timeout time.Duration)
 	conn.SetDeadline(time.Now().Add(timeout))
 	defer conn.SetDeadline(time.Time{})
 
-	tlsConn = tls.Client(conn, tlsConfig)
+	tlsConn := utls.UClient(conn, &utls.Config{
+		ServerName:         tlsConfig.ServerName,
+		InsecureSkipVerify: tlsConfig.InsecureSkipVerify,
+	}, utls.HelloChrome_102)
 
 	// Otherwise perform handshake, but don't verify the domain
 	//