Bump to 10.5.0, remove PSPs

Signed-off-by: David Young <davidy@funkypenguin.co.nz>

Author: funkypenguin

charts/docker-mailserver/Chart.yaml

@@ -1,8 +1,8 @@
 apiVersion: v2
-appVersion: "8.0.1"
+appVersion: "10.5.0"
 description: A fullstack but simple mailserver (smtp, imap, antispam, antivirus, ssl...) using Docker.
 name: docker-mailserver
-version: 0.3.4
+version: 0.4.0-pre-01
 sources:
 - https://github.com/funkypenguin/helm-docker-mailserver
 maintainers:
@@ -19,7 +19,7 @@ icon: https://avatars.githubusercontent.com/u/76868633?s=400&v=4
 
 dependencies:
   - name: "kubernetes-ingress"
-    version: "1.1.3"
+    version: "1.21.1"
     repository: "https://haproxytech.github.io/helm-charts"
     condition: haproxy.enabled
     alias: "haproxy"