Update configuration of the script needed to run the EM test.
Merge branch 'cherry-pick-b6f6f128' into 'Sim09-upgrade, i.e. port merge request !233 (merged)
that was (cherry picked from commit 872e1975), i.e.
4f53caf1 Merge branch 'LHCBGAUSS-1120.Update' into 'Sim09', i.e. MR !222 (merged)