Update the Gitlab CI 'baseline' script to start 'runtest' using the 'salloc' command instead of 'srun' -- the inner 'srun' commands seem to get stuck if the outer command is 'srun'.
Update the Gitlab CI 'baseline' script to start 'runtest' using
the 'salloc' command instead of 'srun' -- the inner 'srun'
commands seem to get stuck if the outer command is 'srun'.

In the same script, update the Slurm queue used on Corona to
'pbatch' -- this script path is not used yet -- updating just
for consistency.

mfem/mfem,mfem/mfem,mfem/mfem,mfem/mfem,mfem/mfem