Update ChangeLog.md with Gravatar QE feature

^ Conflicts:
^	CHANGELOG.md

Author: hamorillo

CHANGELOG.md

@@ -42,6 +42,8 @@
         ([#3072](https://github.com/Automattic/pocket-casts-android/pull/3072))
     *   Add referrals to the app
         ([#3107](https://github.com/Automattic/pocket-casts-android/pull/3107))
+    *   Modify avatar will use Gravatar native Quick Editor
+        ([#3055](https://github.com/Automattic/pocket-casts-android/pull/3055))
 *   Bug Fixes
     *   Keep the playing service in the foreground when casting
         ([#3094](https://github.com/Automattic/pocket-casts-android/pull/3094))