update changelog for 6.6.5 release
@@ -6,7 +6,7 @@ The format is based on [Keep a Changelog](http://keepachangelog.com/en/1.0.0/)
and this project adheres to [Semantic
Versioning](http://semver.org/spec/v2.0.0.html).
-## Unreleased
+## [6.6.5] - 2022-02-03
### Fixed
- Fixed interactive wording for `sensu-backend upgrade`. The wording no longer
