Auto add GPU partition in SLURM template when a GPU is selected
The new GLiCID SLURM configuration (> Aug. 2024) requires to have an explicit GPU partition in the configuration to assign the ressources otherwise the job will be discarded:
```
#SBATCH --partition=gpu
```
However, at the moment the form template only fill the `partition` field **only if** a partition is explicitly selected:
```
{% if partition %}#SBATCH --partition={{partition}}{% endif %}
```
Workaround
----------
Select explicitly the `GPU` partition in the `Advanced cluster configuration` section:

/cc @gaignard-a
issue