Added changelog entry (#5609)

* Added changelog entry

* Update sdk/eventhubs/azure-messaging-eventhubs/CHANGELOG.md

* Update sdk/eventhubs/azure-messaging-eventhubs/CHANGELOG.md

Co-authored-by: Ahson Khan <ahkha@microsoft.com>

---------

Co-authored-by: Ahson Khan <ahkha@microsoft.com>

Author: LarryOsterman

sdk/eventhubs/azure-messaging-eventhubs/CHANGELOG.md

@@ -2,6 +2,10 @@
 
 ## 1.0.0-beta.8 (2024-05-07)
 
+### Features Added
+
+- Added new features for upcoming Event Hubs service release.
+
 ## 1.0.0-beta.7 (2024-04-09)
 
 ### Breaking Changes