Increment versions for azure-resourcemanager-containerregistry releases (Azure#45082)

* Increment versions for azure-resourcemanager-containerregistry releases

* Update CHANGELOG.md

Author: v-hongli1

sdk/resourcemanager/azure-resourcemanager-containerregistry/CHANGELOG.md

@@ -18,6 +18,14 @@
 
 - Updated core dependency from resources.
 
+## 2.50.0-beta.1 (2025-04-23)
+
+### Other Changes
+
+#### Dependency Updates
+
+- Updated `api-version` to `2025-03-01-preview`.
+
 ## 2.49.0 (2025-03-28)
 
 ### Other Changes