changelog: link postgres_catalogs entry to PR

This pull request and its description were written by Isaac.

Author: pietern

NEXT_CHANGELOG.md

@@ -10,6 +10,6 @@
 
 ### Bundles
 * Make sure warnings asking for approval are understood by agents ([#5239](https://github.com/databricks/cli/pull/5239))
-* Add `postgres_catalogs` resource to bind a Unity Catalog catalog to a Postgres database on a Lakebase Autoscaling branch.
+* Add `postgres_catalogs` resource to bind a Unity Catalog catalog to a Postgres database on a Lakebase Autoscaling branch ([#5265](https://github.com/databricks/cli/pull/5265)).
 
 ### Dependency updates