Last week, following the changes associated to vtk-osmesa and the use of setup-headless-display-action we have had an issue appearing while running the visualization tests in #6867.
One of the surprising things is that this PR isn't supposed to impact a visualization test in any way... To merge the changes, which are correct and fixing a bug, we had to disable test_05_antenna_plot and test_06_farfield_exporter. This tests need to be integrated back or we need to propose new tests associated to the features being tested.