update: fix postgresql demo package images

Author: mohitrajain

values/postgresql/demo-secrets.example.yaml

@@ -0,0 +1,8 @@
+# TODO: look deeper into requirements and make a solid, commented secrets example file
+# TODO: better secret handling
+postgresql:
+  auth:
+    username: wire-server
+    password: verysecurepassword
+    database: wire-server
+    postgresPassword: verysecurepassword

values/postgresql/demo-values.example.yaml

@@ -0,0 +1,10 @@
+# This chart is meant to be used in ephemeral deployments, such as demo environments.
+# TODO: look deeper into requirements and make a solid, commented values example file
+postgresql:
+  primary:
+    persistence:
+      enabled: false
+  volumePermissions:
+    image:
+      repository: bitnami/os-shell
+      tag: 12-debian-12-r46