Add v6.4.0-beta.2 to CHANGELOG for ember-source

(cherry picked from commit b028cf8)

Author: kategengler

CHANGELOG.md

@@ -1,5 +1,9 @@
 # Ember Changelog
 
+## v6.4.0-beta.2 (March 24, 2025)
+
+- [#20877](https://github.com/emberjs/ember.js/pull/20877) Re-add support for TypeScript configuration moduleResolution=node10
+
 ## v6.4.0-beta.1 (March 17, 2025)
 
 - [#20842](https://github.com/emberjs/ember.js/pull/20842) [BREAKING] Drop support for TypeScript 4.9 to allow for glimmer-vm upgrade.