[Bug 57501] Upgrade fails in Debian testing with apt 2.9.16

[WineHQ Bugzilla]

https://bugs.winehq.org/show_bug.cgi?id=57501

--- Comment #2 from Shmerl  ---
That worked, thanks! I wonder why apt can't handled ASCII armored keys anymore.

All I see in the changelog:

apt (2.9.15) unstable; urgency=medium

[ Julian Andres Klode ]
  * Stop using apt-key for signature verification
...
    - strutl: Add Base64Decode
    - gpgv: Verify keyrings and dearmor outside apt-key