[cmake] qtpositioning tries to link something QML to an executable

CMake Error at /home/tjmaciei/obj/qt/qt6-release/qtbase/lib64/cmake/Qt6Qml/Qt6QmlMacros.cmake:1003 (target_link_libraries):
  Target "tst_declarative_positioning_core" of type EXECUTABLE may not be
  linked into another target.  One may link only to INTERFACE, OBJECT, STATIC
  or SHARED libraries, or to executables with the ENABLE_EXPORTS property
  set.
Call Stack (most recent call first):
  /home/tjmaciei/obj/qt/qt6-release/qtbase/lib64/cmake/Qt6Qml/Qt6QmlMacros.cmake:489 (qt6_add_qml_plugin)
  /home/tjmaciei/obj/qt/qt6-release/qtbase/lib64/cmake/Qt6Qml/Qt6QmlMacros.cmake:535 (qt6_add_qml_module)
  qtpositioning/tests/auto/declarative_positioning_core/CMakeLists.txt:25 (qt_add_qml_module)