Update-Icinga forgets service password

[killepitisch]

We are using an ActiveDirectory user in order to run the Icinga Agent Service on Windows. We are talking about an "ordinary" user, not a managed user account (MSA). The latter one is not available for use in our company.

Unfortunately the CmdLet "Update-Icinga" doesn't take the password for the service user into account. The service user itself is being preserved, but the Icinga service doesn't restart after upgrading because the password has been forgotten.