fix Warning

qt6-after/qt6-migrated-legatus/Lts/Tools/QLedLine/Test/content.cpp

@@ -1,4 +1,5 @@
 #include <QLayout>
+#include <utility>
 
 #include "content.h"
 #include "fullline.h"
@@ -45,7 +46,7 @@ void Content::setCharCount(int charCount)
 {
   m_charCount = charCount;
 
-  for (FullLine * l : qAsConst(m_lines))
+  for (FullLine * l : std::as_const(m_lines))
     l->setCharCount(m_charCount);
 }
 
@@ -58,7 +59,7 @@ void Content::setHeight(int height)
 {
   m_height = height;
 
-  for (FullLine * l : qAsConst(m_lines))
+  for (FullLine * l : std::as_const(m_lines))
     l->setHeight(height);
 }