fix lint warnings for websocket

transport/internet/websocket/ws_test.go

@@ -6,6 +6,7 @@ import (
 	"testing"
 	"time"
 
+	"v2ray.com/core/common"
 	"v2ray.com/core/common/net"
 	"v2ray.com/core/testing/assert"
 	tlsgen "v2ray.com/core/testing/tls"
@@ -88,7 +89,7 @@ func Test_listenWSAndDial_TLS(t *testing.T) {
 	})
 	listen, err := ListenWS(ctx, net.DomainAddress("localhost"), 13143, func(ctx context.Context, conn internet.Connection) bool {
 		go func() {
-			conn.Close()
+			common.Must(conn.Close())
 		}()
 		return true
 	})
@@ -97,5 +98,5 @@ func Test_listenWSAndDial_TLS(t *testing.T) {
 
 	conn, err := Dial(ctx, net.TCPDestination(net.DomainAddress("localhost"), 13143))
 	assert.Error(err).IsNil()
-	conn.Close()
+	common.Must(conn.Close())
 }