add pr number to changelog

Author: labrenbe

CHANGELOG.md

@@ -11,10 +11,10 @@ All notable changes to this project will be documented in this file.
     and is now set by `ROLLING_LOGS` (or via `--rolling-logs <DIRECTORY>`).
   - Replace stackable-operator `print_startup_string` with `tracing::info!` with fields.
 - BREAKING: Inject the vector aggregator address into the vector config using the env var `VECTOR_AGGREGATOR_ADDRESS` instead
-    of having the operator write it to the vector config ([#XXX]).
+    of having the operator write it to the vector config ([#933]).
 
 [#927]: https://github.com/stackabletech/zookeeper-operator/pull/927
-[#XXX]: https://github.com/stackabletech/zookeeper-operator/pull/XXX
+[#933]: https://github.com/stackabletech/zookeeper-operator/pull/XXX
 
 ## [25.3.0] - 2025-03-21