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)