Mention Helm chart support for PodDisruptionBudget in CHANGELOG.md (#2408)

Author: adutra

CHANGELOG.md

@@ -47,6 +47,9 @@ the authentication parameters are picked from the environment or configuration f
 - The `DEFAULT_LOCATION_OBJECT_STORAGE_PREFIX_ENABLED` feature was added to support placing tables
 at locations that better optimize for object storage.
 
+- The Helm chart now supports Pod Disruption Budgets (PDBs) for Polaris components. This allows users to define
+  the minimum number of pods that must be available during voluntary disruptions, such as node maintenance.
+
 ### Changes
 
 - Polaris Management API clients must be prepared to deal with new attributes in `AwsStorageConfigInfo` objects.