Merge pull request #4919 from sensu/gd/update-changelog-6.9.1

update changelog for 6.9.1 patch release

Author: gd8

CHANGELOG-6.md

@@ -5,6 +5,11 @@ 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).
 
+## [6.9.1] - 2022-12-01
+
+### Changed
+- Allow Graphql Middleware Init funcs to add to Context
+
 ## [6.9.0] - 2022-11-01
 
 ### Added