upgrade kibana to 6.4.2 (#8121)

Signed-off-by: David J. M. Karlsen <david@davidkarlsen.com>

stable/kibana/Chart.yaml

@@ -1,6 +1,6 @@
 name: kibana
-version: 0.14.6
-appVersion: 6.4.1
+version: 0.14.7
+appVersion: 6.4.2
 description: Kibana is an open source data visualization plugin for Elasticsearch
 icon: https://raw.githubusercontent.com/elastic/kibana/master/src/ui/public/icons/kibana-color.svg
 keywords:

stable/kibana/README.md

@@ -43,7 +43,7 @@ The following table lists the configurable parameters of the kibana chart and th
 | `files`                                       | Kibana configuration files                 | None                                   |
 | `image.pullPolicy`                            | Image pull policy                          | `IfNotPresent`                         |
 | `image.repository`                            | Image repository                           | `docker.elastic.co/kibana/kibana-oss`  |
-| `image.tag`                                   | Image tag                                  | `6.4.1`                                |
+| `image.tag`                                   | Image tag                                  | `6.4.2`                                |
 | `image.pullSecrets`                           | Specify image pull secrets                 | `nil`                                  |
 | `commandline.args`                            | add additional commandline args            | `nil`                                  |
 | `ingress.enabled`                             | Enables Ingress                            | `false`                                |

stable/kibana/values.yaml

@@ -1,6 +1,6 @@
 image:
   repository: "docker.elastic.co/kibana/kibana-oss"
-  tag: "6.4.1"
+  tag: "6.4.2"
   pullPolicy: "IfNotPresent"
 
 commandline: