[REG] qmake: Cannot locate rcc when using Qt Quick Compiler

qmake fails to locate rcc when trying to build a QML Project that uses Qt Quick Compiler (CONFIG += qtquickcompiler)

Reproduction steps:

1. Open Qt Creator
2. Create a new blank QML application using qmake (using Qt 6.1 as a Kit)
3. Add CONFIG += qtquickcompiler to the quick file
4. Now build the project and you will notice an error message like this:

09:34:13: Starting: "$QTDIR/6.1.0/gcc_64/bin/qmake" $PROJECTDIR/$PROJECT.pro -spec linux-g++ CONFIG+=debug CONFIG+=qml_debug
sh: 1: $QTDIR/6.1.0/gcc_64/bin/rcc: not found

You can work around it by creating a soft link from libexec/rcc where the tool resides now, to bin/rcc.