Mark as breaking in changelog

Author: sbernauer

crates/stackable-operator/CHANGELOG.md

@@ -6,7 +6,7 @@ All notable changes to this project will be documented in this file.
 
 ### Changed
 
-- Don't parse `/etc/resolv.conf` to auto-detect the Kubernetes cluster domain in case it is not explicitly configured.
+- BREAKING: Don't parse `/etc/resolv.conf` to auto-detect the Kubernetes cluster domain in case it is not explicitly configured.
   Instead the operator will default to `cluster.local`. We revert this now after some concerns where raised, we will
   create a follow-up decision instead addressing how we will continue with this ([#896]).