Add deprecation warning for pod enricher (#297)

See #292

Author: nightkr

docs/modules/commons-operator/pages/pod-enrichment.adoc

@@ -1,6 +1,8 @@
 = Pod enricher
 :description: Use Labels to instruct the Stackable Commons Operator to enrich Pods with Kubernetes node addresses
 
+WARNING: The pod enricher is deprecated as of the Stackable Data Platform 24.11, and will be removed in the next release. For more information, see https://github.com/stackabletech/commons-operator/issues/292[issue #292].
+
 The Stackable Commons Operator automatically adds commonly used information to Pod objects, which would otherwise have to be inferred by traversing the Kubernetes object graph.
 
 == Usage

rust/operator-binary/src/pod_enrichment_controller.rs

@@ -1,3 +1,5 @@
+// Deprecated for removal, see https://github.com/stackabletech/commons-operator/issues/292
+
 use std::{collections::BTreeMap, str::FromStr, sync::Arc, time::Duration};
 
 use futures::StreamExt;