Remove hardcoded feature string in job_submit script

In particular, line 38 and line 43 in file etc/slurm/job_submit.lua

We should be using variables, not hardcoded

added Sprint 25-02 label

changed the description

mentioned in merge request !3 (merged)

assigned to @louistw

changed title from Remove hardcoded feature string to Remove hardcoded feature string in job_submit script

mentioned in commit 2ce12ce3

closed with merge request !3 (merged)