[stable/ghost] Release 4.0.15 (#7124)

* ghost: update to `1.25.4-debian-9`

* ghost: updated chart requirements

* ghost: bump chart appVersion to `1.25.4`

* ghost: bump chart version to `4.0.15`

stable/ghost/Chart.yaml

@@ -1,6 +1,6 @@
 name: ghost
-version: 4.0.14
-appVersion: 1.25.3
+version: 4.0.15
+appVersion: 1.25.4
 description: A simple, powerful publishing platform that allows you to share your
   stories with the world
 keywords:

stable/ghost/requirements.lock

@@ -1,6 +1,6 @@
 dependencies:
 - name: mariadb
   repository: https://kubernetes-charts.storage.googleapis.com/
-  version: 4.3.1
+  version: 4.3.2
 digest: sha256:8a53e73537f5a2d9073c3b1173b9c6b814c2baeb2e8e31485e2ad52172c0b296
-generated: 2018-08-02T11:34:08.632364302Z
+generated: 2018-08-10T08:56:29.286309729Z

stable/ghost/values.yaml

@@ -4,7 +4,7 @@
 image:
   registry: docker.io
   repository: bitnami/ghost
-  tag: 1.25.3-debian-9
+  tag: 1.25.4-debian-9
   ## Specify a imagePullPolicy
   ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'
   ## ref: http://kubernetes.io/docs/user-guide/images/#pre-pulling-images