update changelog

Author: razvan

CHANGELOG.md

@@ -8,8 +8,10 @@ All notable changes to this project will be documented in this file.
 
 - The lifetime of auto generated TLS certificates is now configurable with the role and roleGroup
   config property `requestedSecretLifetime`. This helps reducing frequent Pod restarts ([#501]).
+- Run a `containerdebug` process in the background of each Spark container to collect debugging information ([#508]).
 
 [#501]: https://github.com/stackabletech/spark-k8s-operator/pull/501
+[#508]: https://github.com/stackabletech/spark-k8s-operator/pull/508
 
 ## [24.11.0] - 2024-11-18