Add v5.10.2 to CHANGELOG

(cherry picked from commit d0a70a6)

Author: kategengler

CHANGELOG.md

@@ -5,6 +5,11 @@
 - [#20716](https://github.com/emberjs/ember.js/pull/20716) [BREAKING] Drop Node 16 support
 - [#20704](https://github.com/emberjs/ember.js/pull/20704) Remove `Component` suffix from blueprints to facilitate <template>
 
+## v5.10.2 (August 6, 2024)
+
+- [#20726](https://github.com/emberjs/ember.js/pull/20726) [BUGFIX] Fix test waiters by removing unintentional duplication from ember-testing bundle
+- [#20715](https://github.com/emberjs/ember.js/pull/20715) [BUGFIX] Don't publish empty modules
+
 ## v5.10.1 (July 12, 2024)
 
 - [#20720](https://github.com/emberjs/ember.js/pull/20720) [BUGFIX] Fix deprecation guide url for array prototype extensions deprecation