Fix akv secrete provider update operation fail (#9573)

Author: charleswool

src/aks-preview/HISTORY.rst

@@ -11,6 +11,7 @@ To release a new version, please select a new version number (usually plus 1 to
 
 Pending
 +++++++
+* `az aks update`: Fix `--enable-secret-rotation`, `--disable-secret-rotation`, and `--rotation-poll-interval` flags being silently ignored when updating Azure Key Vault Secrets Provider addon configuration.
 * `az aks create/update`: Add `--enable-azure-monitor-logs` support to container network logs validation.
 * `az aks create/update`: Add `--enable-default-domain` and `--disable-default-domain` parameters to manage the default domain feature for web app routing.
 

src/aks-preview/azext_aks_preview/managed_cluster_decorator.py

@@ -7425,6 +7425,10 @@ def update_addon_profiles(self, mc: ManagedCluster) -> ManagedCluster:
         """
         self._ensure_mc(mc)
 
+        # Call the parent class method to handle base addon profile updates
+        # (including Azure Keyvault Secrets Provider secret rotation settings)
+        mc = super().update_addon_profiles(mc)
+
         # Handle enable Azure Monitor logs
         if self.context.get_enable_azure_monitor_logs():
             self._setup_azure_monitor_logs(mc)