fix Warning

qt6-after/qt6-migrated-legatus/Lts/Tools/DateTimeSyncer/system_caller.cpp

@@ -6,6 +6,7 @@
   * Created by Patric Karwat, NLE, 07-03-2019
   */
 #include "system_caller.h"
+#include <utility>
 #include <QtCore/QTimer>
 #include <QtCore/QDateTime>
 
@@ -21,7 +22,7 @@ SystemCaller::SystemCaller(QObject *parent)
 
 SystemCaller::~SystemCaller()
 {
-  for (auto socket : qAsConst(m_sockets))
+  for (auto socket : std::as_const(m_sockets))
   {
     socket->close();
     socket->deleteLater();