[qtbase] Fix "There should be no absolute paths"

[bansan85]

Problem occurs on x64-linux-dynamic.

warning: There should be no absolute paths, such as the following, in an installed package:
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic
  /home/XXX/prog/vcpkg/installed
  /home/XXX/prog/vcpkg/buildtrees/qtbase
  /home/XXX/prog/vcpkg/downloads
Absolute paths were found in the following files:
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Concurrent.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Core.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6DBus.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Gui.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Network.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6OpenGL.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6OpenGLWidgets.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Platform.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6PrintSupport.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Sql.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Test.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Widgets.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/debug/lib/pkgconfig/Qt6Xml.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Concurrent.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Core.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6DBus.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Gui.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Network.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6OpenGL.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6OpenGLWidgets.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Platform.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6PrintSupport.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Sql.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Test.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Widgets.pc
  /home/XXX/prog/vcpkg/packages/qtbase_x64-linux-dynamic/lib/pkgconfig/Qt6Xml.pc
error: Found 1 post-build check problem(s). To submit these ports to curated catalogs, please first correct the portfile: /home/XXX/prog/vcpkg/ports/qtbase/portfile.cmake

• Changes comply with the maintainer guide.
• SHA512s are updated for each updated download.
• The "supports" clause reflects platforms that may be fixed by this new version.
• Any fixed CI baseline entries are removed from that file.
• Any patches that are no longer applied are deleted from the port's directory.
• The version database is fixed by rerunning ./vcpkg x-add-version --all and committing the result.
• Only one version is added to each modified port's versions file.

[Neumann-A]

Move that call into the qt script helpers.

[bansan85]

I didn't tested every Qt packages but I don't have anymore error.

[Neumann-A]

please move it into qt_fixup_and_cleanup