Expired gpg key in OBS

.deb users of our upstream repo can't update anymore (Debian, Ubuntu).

Message examples:

# apt update
[...]
W: GPG error: http://download.opensuse.org/repositories/home:/CZ-NIC:/knot-resolver-latest/Debian_11  InRelease: The following signatures were invalid: EXPKEYSIG 74062DB36A1F4009 home:CZ-NIC OBS Project <home:CZ-NIC@build.opensuse.org>
N: Updating from such a repository can't be done securely, and is therefore disabled by default.

The key:

pub   rsa2048 2018-02-15 [SC] [expired: 2022-06-21]
      45737F9C8BC3F3ED2791818274062DB36A1F4009
uid           [ expired] home:CZ-NIC OBS Project <home:CZ-NIC@build.opensuse.org>
To upload designs, you'll need to enable LFS and have an admin enable hashed storage. More information