Fix truncated CHANGELOG

(cherry picked from commit 3cd3ebe)

Author: chancancode

CHANGELOG.md

@@ -2,8 +2,8 @@
 
 ## v5.5.0-beta.2 (November 20, 2023)
 
-- [#20575](https://github.com/emberjs/ember.js/pull/20575) [BUGFIX] Update bac>
-- [#20578](https://github.com/emberjs/ember.js/pull/20578) [BUGFIX] Deprecate >
+- [#20575](https://github.com/emberjs/ember.js/pull/20575) [BUGFIX] Update backburner.js to 2.4.2
+- [#20578](https://github.com/emberjs/ember.js/pull/20578) [BUGFIX] Deprecate outlet `TemplateFactory` support
 
 ## v5.5.0-beta.1 (October 30, 2023)