Update documentation to include kube-state-metrics

documentation/aks-upgrade.md

@@ -97,6 +97,7 @@ az aks nodepool get-upgrades --resource-group <ResourceGroup> --cluster-name <Cl
     - Run following commands in another terminal to see the cluster upgrade progress.
         -  kubectl get events --watch
         -  kubectl get nodes --watch
+    - Align the version of kube-state-metrics with kubernetes version. See [compatibility matrix](https://github.com/kubernetes/kube-state-metrics?tab=readme-ov-file#compatibility-matrix)
 1. After successful upgrades for each environment, check metrics are still displaying and working well in Grafana
     - Check the dashboards in grafana: https://grafana.cluster<x\>.development.teacherservices.cloud, https://grafana.platform-test.teacherservices.cloud, https://grafana.test.teacherservices.cloud, https://grafana.teacherservices.cloud
 1. Follow the same manual process to upgrade the platform_test cluster