fix Warning

qt6-after/qt6-migrated-legatus/Lts/Common/LtsAppDescriptor/lts_app_descriptor.cpp

@@ -113,7 +113,7 @@ AppDescriptionVector LtsAppDescriptor::getAppDescriptionVector(const QByteArray&
         int column = 0;
         QChar x = QLatin1Char('\n');
 
-        for (int i = 0; i < jsonDocument.count(); i++)
+        for (int i = 0; i < jsonDocument.size(); i++)
         {
             if (i == parseError.offset)
                 break;