[incubator/cassandra-reaper] add repo archive notice (#24036)

Signed-off-by: Scott Rigby <scott@r6by.com>

incubator/cassandra-reaper/Chart.yaml

@@ -5,7 +5,7 @@ name: cassandra-reaper
 home: http://cassandra-reaper.io/
 keywords:
   - cassandra
-version: 0.2.1
+version: 0.2.2
 maintainers:
   - name: kamsz
     email: kamil@szczygiel.io

incubator/cassandra-reaper/README.md

@@ -1,3 +1,8 @@
+# ⚠️ Repo Archive Notice
+
+As of Nov 13, 2020, charts in this repo will no longer be updated.
+For more information, see the Helm Charts [Deprecation and Archive Notice](https://github.com/helm/charts#%EF%B8%8F-deprecation-and-archive-notice), and [Update](https://helm.sh/blog/charts-repo-deprecation/).
+
 # Cassandra
 A cassandra-reaper Chart for Kubernetes