net/mpich: Upgrade mpich from 4.2.1 to 4.2.2
- Remove default slurm dependency and make it an option (Bug 279777)
- Remove HYDRA dependency on torque (not needed)
- Revert removal of HYDRA option
PR: 280184, 279777
Approved by: Laurent Chardon <laurent.chardon@gmail.com> (maintainer)