Update Phabricator for DaemonOverseer vs DaemonHandle split

Summary: Ref T7352. A couple of the APIs changed slightly with D11851.

Test Plan: See D11851.

Reviewers: btrahan

Reviewed By: btrahan

Subscribers: epriestley

Maniphest Tasks: T7352

Differential Revision: https://secure.phabricator.com/D11852