[stable/ghost] Release 5.4.2 (#9235)

* ghost: update to `2.6.0`

Signed-off-by: Bitnami Containers <containers@bitnami.com>

* ghost: bump chart appVersion to `2.6.0`

Signed-off-by: Bitnami Containers <containers@bitnami.com>

* ghost: bump chart version to `5.4.2`

Signed-off-by: Bitnami Containers <containers@bitnami.com>

stable/ghost/Chart.yaml

@@ -1,6 +1,6 @@
 name: ghost
-version: 5.4.1
-appVersion: 2.5.0
+version: 5.4.2
+appVersion: 2.6.0
 description: A simple, powerful publishing platform that allows you to share your
   stories with the world
 keywords:

stable/ghost/values.yaml

@@ -10,7 +10,7 @@
 image:
   registry: docker.io
   repository: bitnami/ghost
-  tag: 2.5.0
+  tag: 2.6.0
   ## 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