chore: add CHANGELOG entry

Signed-off-by: Mattia Lavacca <[email protected]>

Author: mlavacca

CHANGELOG.md

@@ -183,6 +183,9 @@
   runner container images (`kong/mcp-server-init`, `kong/mcp-server-runner`) to
   the versions returned by Konnect.
   [#3943](https://github.com/Kong/kong-operator/pull/3943)
+- `MCPServer`: provision the `ai-mcp-proxy` `KongPlugin` and attach it to the
+  owned `KongService` via a dedicated `KongPluginBinding`.
+  [#4188](https://github.com/Kong/kong-operator/pull/4188)
 
 ### Changed