[stable/ghost] Bump Ghost version (#419)

* ghost-0.4.2: bump `bitnami/ghost` image to version `0.11.4-r0`

* Update requirements.yaml

stable/ghost/Chart.yaml

@@ -1,5 +1,5 @@
 name: ghost
-version: 0.4.1
+version: 0.4.2
 description: A simple, powerful publishing platform that allows you to share your stories with the world
 keywords:
 - ghost

stable/ghost/requirements.yaml

@@ -1,4 +1,4 @@
 dependencies:
 - name: mariadb
-  version: 0.5.2
+  version: 0.5.6
   repository: https://kubernetes-charts.storage.googleapis.com/

stable/ghost/values.yaml

@@ -1,7 +1,7 @@
 ## Bitnami Ghost image version
 ## ref: https://hub.docker.com/r/bitnami/ghost/tags/
 ##
-image: bitnami/ghost:0.11.3-r0
+image: bitnami/ghost:0.11.4-r0
 
 ## Specify a imagePullPolicy
 ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'