Several OS have wrong pkgconfig locations:

• linux-g++-Ubuntu22.04-x64 (all files, same goes for Rhel9.4 and SLES15)

• win-MinGW13.1.0-Windows11-23H2-x64:

  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6AppManQmlApplicationPrivate.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6AppManQmlPrivate.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6AppManQmlSystemUIPrivate.pc: prefix=/Users/qt/work/install 
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6Coap.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6DeclarativeOpcua.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6IfRemoteObjectsHelper.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6InsightTracker.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6InsightTrackerQml.pc: prefix=/Users/qt/work/install 
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6InterfaceFramework.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6Mqtt.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6OpcUa.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6Pdf.pc: prefix=/Users/qt/work/install
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6PdfQuick.pc: prefix=/Users/qt/work/install 
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6PdfWidgets.pc: prefix=/Users/qt/work/install 
  Incorrect prefix in file C:\Users\qt\RTA\Qt_6.8.5\6.8.5\mingw_64\lib\pkgconfig\Qt6VncServer.pc: prefix=/Users/qt/work/install