vtk module dependency in Testing/Rendering

[pkestene (Pierre Kestener)]

I may be wrong as I’m not familiar with vtk build system, but I think Testing/Rendering/vtk.moduleshould list VTK::ParallelMPI in section OPTIONAL_DEPENDS since symbol VTK_MODULE_ENABLE_VTK_ParallelMPI is used in Testing/Rendering/vtkTestingInteractor.cxx

[ben.boeckel (Ben Boeckel (Kitware))]

Indeed! Thanks for the report.

MR is here: https://gitlab.kitware.com/vtk/vtk/-/merge_requests/10936