[stable/magento] Release 0.4.12 (#1657)

* magento: update to `bitnami/magento:2.1.8-r0`

* magento: bump chart appVersion to `2.1.8`

* magento: bump chart version to `0.4.12`

stable/magento/Chart.yaml

@@ -1,6 +1,6 @@
 name: magento
-version: 0.4.12
-appVersion: 2.1.7
+version: 0.4.13
+appVersion: 2.1.8
 description: A feature-rich flexible e-commerce solution. It includes transaction options, multi-store functionality, loyalty programs, product categorization and shopper filtering, promotion rules, and more.
 keywords:
 - magento

stable/magento/values.yaml

@@ -2,7 +2,7 @@
 ## ref: https://hub.docker.com/r/bitnami/magento/tags/
 ##
 
-image: bitnami/magento:2.1.7-r1
+image: bitnami/magento:2.1.8-r0
 
 ## Specify a imagePullPolicy
 ## Defaults to 'Always' if image tag is 'latest', else set to 'IfNotPresent'