Update antimicrox to 3.1.2
Release notes available here.
Development has move on to a new repository, the other one is now archived.
Test Plan: Tested with my usual mouse mulation profile, everything is nominal.
Reviewers: Triage Team, JoshStrobl
Reviewed By: Triage Team, JoshStrobl
Differential Revision: https://dev.getsol.us/D9778