Update CHANGELOG for version 1.30.0 release

Updated the CHANGELOG for version 1.29.0 with release date and details.

Author: achauhan-scc

sdk/ml/azure-ai-ml/CHANGELOG.md

@@ -1,6 +1,6 @@
 # Release History
 
-## 1.29.0 (unreleased)
+## 1.29.0 (2025-10-29)
 
 ### Features Added
 
@@ -12,13 +12,22 @@
   - `ml_client.deployment_templates.archive()`
   - `ml_client.deployment_templates.restore()`
 
+## 1.29.0 (2025-09-01)
+
+### Features Added
+
+- Removed the dependencies - msrest and six
+
 ### Bugs Fixed
 - Fix for registry resource group passed to OnlineEndpointOperations when model is in registry in different resource group compared to workspace.
 - Set defaults for min_instances, max_instances, idle_time_before_scale_down in AmlCompute
 
 ### Other Changes
 - v2 component types are now case insensitive
 
+### Other Changes
+- v2 component types are now case insensitive
+
 ## 1.28.1 (2025-07-08)
 
 ### Features Added