CODEOWNERS for distributed optimizer. (#31403)
Summary:
Pull Request resolved: https://github.com/pytorch/pytorch/pull/31403
ghstack-source-id: 95874532
Test Plan: waitforbuildbot
Differential Revision: D19154217
fbshipit-source-id: a18ebe646b97c83cc0eb0821b10b4c76d5ce2878
