Updated CHANGELOG.md for release 2.77.0 (#7178)

Author: Kelsey-Ethyca

CHANGELOG.md

@@ -19,7 +19,9 @@ Changes can also be flagged with a GitHub label for tracking purposes. The URL o
 - https://github.com/ethyca/fides/labels/high-risk: to indicate that a change is a "high-risk" change that could potentially lead to unanticipated regressions or degradations
 - https://github.com/ethyca/fides/labels/db-migration: to indicate that a given change includes a DB migration
 
-## [Unreleased](https://github.com/ethyca/fides/compare/2.76.1..main)
+## [Unreleased](https://github.com/ethyca/fides/compare/2.77.0..main)
+
+## [2.77.0](https://github.com/ethyca/fides/compare/2.76.1..2.77.0)
 
 ### Added
 - Added editable GPC translation fields to privacy experience configuration [#7137](https://github.com/ethyca/fides/pull/7137)