Depooling pipeline does not leverage slurm

[amadeovezz]

There is currently a bug with the way snakemake interacts with slurm and singularity.

I've added to an issue on the snakemake repo:

snakemake/snakemake#2808

[amadeovezz]

Looks like there was a fix in the snakemake repo!

snakemake/snakemake#2808

Will test this out at some point and confirm it works.