Prepare for releasing SelfHelp 1.1.0-beta.4 (Azure#44736)

Author: ArthurMa1978

sdk/selfhelp/Azure.ResourceManager.SelfHelp/CHANGELOG.md

@@ -1,14 +1,10 @@
 # Release History
 
-## 1.1.0-beta.4 (Unreleased)
+## 1.1.0-beta.4 (2024-06-26)
 
 ### Features Added
 
-### Breaking Changes
-
-### Bugs Fixed
-
-### Other Changes
+- Upgraded api-version tag to new 'package-2024-03-01-preview'. Tag detail available at https://github.com/Azure/azure-rest-api-specs/blob/51031c3dc961c33be93afe1f15d35acfe5999861/specification/help/resource-manager/readme.md.
 
 ## 1.1.0-beta.3 (2024-05-10)