Change to bitnamilegacy postgres image

Author: GDYendell

charts/apps/templates/postgres-app.yaml

@@ -9,7 +9,7 @@ metadata:
 spec:
   project: {{ default .Release.Namespace .Values.project }}
   source:
-    repoURL: https://charts.bitnami.com/bitnami
+    repoURL: https://charts.bitnami.com/bitnamilegacy
     targetRevision: {{ .Values.postgresql.targetRevision }}
     chart: postgresql
     helm: