[stable/stolon] deprecating chart (#24400)

Signed-off-by: Matt Farina <matt@mattfarina.com>

stable/stolon/Chart.yaml

@@ -1,16 +1,12 @@
 apiVersion: v1
 name: stolon
-version: 1.6.4
+version: 1.6.5
 appVersion: 0.16.0
-description: Stolon - PostgreSQL cloud native High Availability.
+description: DEPRECATED - Stolon - PostgreSQL cloud native High Availability.
 home: https://github.com/sorintlab/stolon
 icon: https://i.imgur.com/tIW8sAW.png
 sources:
   - https://github.com/sorintlab/stolon
   - https://github.com/lwolf/stolon-chart
-maintainers:
-  - name: rtluckie
-    email: rluckie@cisco.com
-  - name: lwolf
-    email: ipaq.lw@gmail.com
+deprecated: true
 engine: gotpl

stable/stolon/OWNERS

@@ -1,6 +0,0 @@
-approvers:
-  - lwolf
-  - rtluckie
-reviewers:
-  - lwolf
-  - rtluckie

stable/stolon/README.md

@@ -8,6 +8,10 @@ For more information, see the Helm Charts [Deprecation and Archive Notice](https
 * Installs [Stolon](https://github.com/sorintlab/stolon) (HA PostgreSQL cluster)
 * Based on [lwolf/stolon-chart](https://github.com/lwolf/stolon-chart) and [stolon examples](https://github.com/sorintlab/stolon/tree/master/examples/kubernetes/statefulset)
 
+## DEPRECATION NOTICE
+
+This chart is deprecated and no longer supported.
+
 ## TL;DR;
 
 ```console