return the tag for postgresql to 12.1.0 (#2015)

Signed-off-by: Ross Turk <ross@rossturk.com>

Author: rossturk

chart/values.yaml

@@ -107,7 +107,7 @@ postgresql:
   ## @param image.tag PostgreSQL image tag (immutable tags are recommended)
   ##
   image:
-    tag: 0.22.0
+    tag: 12.1.0
   ## Authentication parameters
   ## ref: https://github.com/bitnami/bitnami-docker-postgresql/blob/master/README.md#setting-the-root-password-on-first-run
   ## ref: https://github.com/bitnami/bitnami-docker-postgresql/blob/master/README.md#creating-a-database-on-first-run