GW transitioning from less secure apps(=SMTP password auth)

Will affect at least:
- Some workflows
- wiki.testausserveri.fi

> Autumn of 2024:
> 
> Access to less secure apps will be turned off for all Google Accounts.
> CalDAV, CardDAV, IMAP, SMTP, and POP will no longer work with legacy passwords (basic authentication).
> 
> https://support.google.com/a/answer/14114704?hl=en-GB