JOB ID needed in register_job / register_adhoc_storage

gkfs script uses SLURM_JOB_ID environment variable to run srun and launch the servers.

changed milestone to %ADMIRE mid-term review

added integration label

mentioned in issue #70 (closed)

created branch amiranda/83-job-id-needed-in-register_job-register_adhoc_storage to address this issue

mentioned in merge request !56 (merged)

closed with merge request !56 (merged)

mentioned in commit 41e22baf