TaylorBubble does not build on Mac

The TaylorBubble showcase does not build on Mac with the following error:

[100%] Building CXX object apps/showcases/FreeSurface/CMakeFiles/TaylorBubble.dir/TaylorBubble.cpp.o
In file included from /Users/dominikthoennes/Work/TerraNeo/walberla/src/vtk/BlockCellDataWriter.h:25,
                 from /Users/dominikthoennes/Work/TerraNeo/walberla/src/field/vtk/FlagFieldMapping.h:26,
                 from /Users/dominikthoennes/Work/TerraNeo/walberla/src/lbm/free_surface/VtkWriter.h:28,
                 from /Users/dominikthoennes/Work/TerraNeo/walberla/apps/showcases/FreeSurface/TaylorBubble.cpp:34:
/Users/dominikthoennes/Work/TerraNeo/walberla/src/vtk/UtilityFunctions.h: In instantiation of 'std::string walberla::vtk::typeToString() [with T = long unsigned int; std::string = std::__cxx11::basic_string<char>]':
/Users/dominikthoennes/Work/TerraNeo/walberla/src/vtk/BlockCellDataWriter.h:258:75:   required from 'std::string walberla::vtk::BlockCellDataWriter<T, F_SIZE_ARG>::typeString() const [with T = long unsigned int; long unsigned int F_SIZE_ARG = 1; std::string = std::__cxx11::basic_string<char>]'
/Users/dominikthoennes/Work/TerraNeo/walberla/src/vtk/BlockCellDataWriter.h:258:16:   required from here
/Users/dominikthoennes/Work/TerraNeo/walberla/src/vtk/UtilityFunctions.h:47:24: error: 'type_string' is not a member of 'walberla::vtk::VTKTrait<long unsigned int>'
   47 |    return VTKTrait<T>::type_string;
      |                        ^~~~~~~~~~~
make[3]: *** [apps/showcases/FreeSurface/CMakeFiles/TaylorBubble.dir/TaylorBubble.cpp.o] Error 1

Apparently uint_t does not match with long unsigned int