[dashboards] Warning on configuration with Xcursor
on paraview-branch-master-[fedora31_shared_icc_mpi_python]
https://open.cdash.org/build/7115616/configure
CMake Warning at VTK/Rendering/OpenGL2/CMakeLists.txt:359 (message):
X11::Xcursor not found; custom cursors will be ignored.
Xcursor should either be added to the docker image or the warning should be a message.