fix: close connection after error handling in tuic server

transport/tuic/server.go

@@ -174,6 +174,7 @@ func (s *serverHandler) handleStream() (err error) {
 					return s.v5Handler.HandleStream(conn)
 				}
 			}
+			_ = conn.Close()
 			return
 		}()
 	}

transport/tuic/v4/server.go

@@ -105,6 +105,7 @@ func (s *serverHandler) parsePacket(packet *Packet, udpRelayMode types.UdpRelayM
 func (s *serverHandler) HandleStream(conn *N.BufferedConn) (err error) {
 	connect, err := ReadConnect(conn)
 	if err != nil {
+		_ = conn.Close()
 		return err
 	}
 	<-s.authCh

transport/tuic/v5/server.go

@@ -125,6 +125,7 @@ func (s *serverHandler) parsePacket(packet *Packet, udpRelayMode types.UdpRelayM
 func (s *serverHandler) HandleStream(conn *N.BufferedConn) (err error) {
 	connect, err := ReadConnect(conn)
 	if err != nil {
+		_ = conn.Close()
 		return err
 	}
 	<-s.authCh