Update changelog with changes from v2.13.0

Author: NewRelic-K8s-Agents-Bot

CHANGELOG.md

@@ -8,7 +8,9 @@ Unreleased section should follow [Release Toolkit](https://github.com/newrelic/r
 
 ## Unreleased
 
-### enhancement
+## v2.13.0 - 2026-07-13
+
+### 🚀 Enhancements
 - Add support for Kubernetes 1.35, remove support for 1.30 @jamescripter [#597](https://github.com/newrelic/newrelic-prometheus-configurator/pull/597)
 
 ## v2.12.0 - 2026-06-29