Add v4.4.0-beta.1 to CHANGELOG

CHANGELOG.md

@@ -1,5 +1,13 @@
 # Ember Changelog
 
+### v4.4.0-beta.1 (March 24, 2022)
+
+- [#19882](https://github.com/emberjs/ember.js/pull/19882) / [#20005](https://github.com/emberjs/ember.js/pull/20005) [FEATURE] Implement the `unique-id` helper per [RFC #0659](https://github.com/emberjs/rfcs/blob/master/text/0659-unique-id-helper.md).
+- [#19981](https://github.com/emberjs/ember.js/pull/19981) [FEATURE] Facilitate custom test setups per [RFC #0637](https://github.com/emberjs/rfcs/blob/master/text/0637-customizable-test-setups.md).
+- [#16879](https://github.com/emberjs/ember.js/pull/16879) [BUGFIX] isEmpty on nested objects
+- [#17978](https://github.com/emberjs/ember.js/pull/17978) Make hasListeners public
+- [#20014](https://github.com/emberjs/ember.js/pull/20014) Log `until` for deprecations
+
 ### v4.3.0 (March 21, 2022)
 
 - [#20025](https://github.com/emberjs/ember.js/pull/20025) [BUGFIX] Fix a memory leak in the Router Service class