[stable/kapacitor] Chart deprecation (helm#21247)

* Add deprecation notice.

Signed-off-by: Naseem <naseem@transit.app>

* Deprecate chart.

Signed-off-by: Naseem <naseem@transit.app>

stable/kapacitor/Chart.yaml

@@ -1,8 +1,9 @@
 apiVersion: v1
 name: kapacitor
-version: 1.2.1
+version: 1.2.2
 appVersion: 1.5.2
-description: InfluxDB's native data processing engine. It can process both stream
+deprecated: true
+description: DEPRECATED InfluxDB's native data processing engine. It can process both stream
   and batch data from InfluxDB.
 keywords:
 - kapacitor
@@ -12,9 +13,4 @@ keywords:
 home: https://www.influxdata.com/time-series-platform/kapacitor/
 sources:
 - https://github.com/influxdata/kapacitor
-maintainers:
-- name: jackzampolin
-  email: jack@influxdb.com
-- name: aisuko
-  email: urakiny@gmail.com
 engine: gotpl