When using Qt in windows with a UNIX directory tree and `cmake install` to install stuff, `qmlimportscanner` ends up in `/share/qt6/bin/` whereas `windeployqt` ends up in `/bin`, but `windeployqt` expects `qmlimportscanner` to be in the same folder as itself:

See https://invent.kde.org/qt/qt/qtbase/-/blob/v6.10.0/src/tools/windeployqt/qmlutils.cpp#L89

```
const QString binary = QStringLiteral("qmlimportscanner");
if (!runProcess(binary, arguments, QDir::currentPath(), &exitCode, &stdOut, &stdErr,
errorMessage, timeout))
return result;
```

I submitted a fix in Msys2 [packaging](https://github.com/msys2/MINGW-packages/pull/26127), but they want to know your stance on this.