SUMMARY

Trying to update our port from 5.2.0 to 5.2.1 failed on our buildmasters with Qt 6.7.2, local build with Qt 6.9.0 works fine.

STEPS TO REPRODUCE
1. Build with Qt 6.7.2

OBSERVED RESULT

Error on:

```
[  7%] Building CXX object kmymoney/misc/CMakeFiles/kmm_selections.dir/selectedobjects.cpp.o
/sources/kmymoney-5.2.1/kmymoney/misc/kmm_codec.cpp: In static member function 'static QByteArray KMM_Codec::encodingForLocale()':
/sources/kmymoney-5.2.1/kmymoney/misc/kmm_codec.cpp:248:52: error: no matching function for call to 'QStringDecoder::QStringDecoder(QString)'
 248 |     QStringDecoder decoder(QLocale::system().name());
     |                                                    ^
In file included from /boot/system/develop/headers/Qt6/QtCore/qstring.h:1581,
                from /boot/system/develop/headers/Qt6/QtCore/qobject.h:11,
                from /boot/system/develop/headers/Qt6/QtWidgets/qwidget.h:9,
                from /boot/system/develop/headers/Qt6/QtWidgets/qcombobox.h:8,
                from /boot/system/develop/headers/Qt6/QtWidgets/QComboBox:1,
                from /sources/kmymoney-5.2.1/kmymoney/misc/kmm_codec.cpp:11:
/boot/system/develop/headers/Qt6/QtCore/qstringconverter.h:95:14: note: candidate: 'QStringDecoder::QStringDecoder(const char*, QStringConverterBase::Flags)'
  95 |     explicit QStringDecoder(const char *name, Flags f = Flag::Default)
     |              ^~~~~~~~~~~~~~
```

EXPECTED RESULT

Build completes without errors

SOFTWARE/OS VERSIONS
Haiku: 32bit/64bit R1B5
KDE Frameworks Version: 6.16.0
Qt Version: 6.7.2

ADDITIONAL INFORMATION
Log output from our buildmaster (64bit in this case, output is the same for 32bit).

https://build.haiku-os.org/buildmaster/master/x86_64/logviewer.html?buildruns/12869/builds/85615.log