package current version of deisa on spack

[benoitmartin88]

To be packaged:

• dask -> https://github.com/Maison-de-la-Simulation/spack/blob/stable/packages/py-dask/package.py
• update py-distributed -> https://github.com/Maison-de-la-Simulation/spack/blob/stable/packages/py-distributed/package.py
• update deisa -> https://github.com/Maison-de-la-Simulation/spack/blob/stable/packages/deisa/package.py