[css-highlights] Update Editors

Author: frivoal

css-highlight-api-1/Overview.bs

@@ -34,7 +34,7 @@ Group: csswg
 ED: https://drafts.csswg.org/css-highlight-api-1/
 Editor: Florian Rivoal, On behalf of Bloomberg, https://florian.rivoal.net/, w3cid 43241
 Editor: Sanket Joshi, Microsoft Corporation https://www.microsoft.com, https://github.com/sanketj
-Editor: Theresa O'Connor, w3cid 40614, Apple Inc. https://apple.com/, hober@apple.com
+Editor: Megan Gardner, Apple Inc. https://apple.com/
 Abstract:
 	This CSS module describes a mechanism
 	for styling arbitrary ranges of a document identified by script.