v3.10.8-2

Changed

• Set sasl_password configuration option to encrypted.
  • In classic environments, this migration is done automatically during the upgrade.
  • In multinode environments, a migration is not necessary but recommended.
    To do that, you can move the option from the postfix-config configmap to the secret with the same name.
• [#72] Build postfix as a helm chart as well as a normal dogu.