Install procps package
Summary:
The ps command is now required by phd to manage daemons.
Fixes T1916.
Test Plan: docker run --rm nasqueron/devcentral ps auxw
Reviewers: dereckson
Subscribers: Nasqueron Docker deployment squad
Tags: Docker images
Maniphest Tasks: T1916
Differential Revision: https://devcentral.nasqueron.org/D3240