update changelog

Author: ceelias

CHANGELOG.md

@@ -11,6 +11,8 @@
   * [UPGRADE] Elasticsearch Exporer Helm chart upgraded from 6.7.2 to 7.0.0
   * [UPGRADE] OpenSearch Data Source Plugin to Grafana upgraded from 2.28.0 to 2.29.1
 
+* **Metrics**
+  * [CHANGE] The Grafana alerts targeting Viya that previously were provided by default have been moved to the samples directory. Given the variability of Viya environments, these alerts are now optional and can be copied to `USER_DIR/monitoring/alerting` for use. They have also been split into separate files for easier customization. See the [Alerting Samples README](samples/alerts/README.md) for more details.
 
 ## Version 1.2.41 (19AUG2025)
 * **Metrics**