Comment 30 for bug 1920640

The updated packages don't work for me on groovy.

$ apt policy ubuntu-keyring ubuntu-dbgsym-keyring
ubuntu-keyring:
  Installed: 2020.06.17.3
  Candidate: 2020.06.17.3
  Version table:
 *** 2020.06.17.3 500
        500 http://ru.archive.ubuntu.com/ubuntu groovy-updates/main amd64 Packages
        500 http://ru.archive.ubuntu.com/ubuntu groovy-updates/main i386 Packages
        100 /var/lib/dpkg/status
     2020.06.17.1 500
        500 http://ru.archive.ubuntu.com/ubuntu groovy/main amd64 Packages
        500 http://ru.archive.ubuntu.com/ubuntu groovy/main i386 Packages
ubuntu-dbgsym-keyring:
  Installed: 2020.06.17.3
  Candidate: 2020.06.17.3
  Version table:
 *** 2020.06.17.3 500
        500 http://ru.archive.ubuntu.com/ubuntu groovy-updates/main amd64 Packages
        500 http://ru.archive.ubuntu.com/ubuntu groovy-updates/main i386 Packages
        100 /var/lib/dpkg/status
     2020.06.17.1 500
        500 http://ru.archive.ubuntu.com/ubuntu groovy/main amd64 Packages
        500 http://ru.archive.ubuntu.com/ubuntu groovy/main i386 Packages

$ sudo apt update
Get:1 file:/mnt/g/packages ubuntu-groovy InRelease
Ign:1 file:/mnt/g/packages ubuntu-groovy InRelease
Get:2 file:/mnt/g/packages ubuntu-groovy Release [3044 B]
Get:2 file:/mnt/g/packages ubuntu-groovy Release [3044 B]
Get:3 file:/mnt/g/packages ubuntu-groovy Release.gpg
Ign:3 file:/mnt/g/packages ubuntu-groovy Release.gpg
Hit:4 http://ru.archive.ubuntu.com/ubuntu groovy InRelease
Hit:5 http://ru.archive.ubuntu.com/ubuntu groovy-updates InRelease
Hit:6 http://dl.google.com/linux/chrome/deb stable InRelease
Hit:7 http://ru.archive.ubuntu.com/ubuntu groovy-backports InRelease
Hit:8 http://archive.canonical.com/ubuntu groovy InRelease
Hit:9 http://ppa.launchpad.net/lutris-team/lutris/ubuntu groovy InRelease
Hit:10 http://security.ubuntu.com/ubuntu groovy-security InRelease
Ign:11 http://ddebs.ubuntu.com groovy InRelease
Hit:12 https://wire-app.wire.com/linux/debian stable InRelease
Ign:13 http://ddebs.ubuntu.com groovy-updates InRelease
Hit:14 https://dl.winehq.org/wine-builds/ubuntu groovy InRelease
Hit:15 https://repo.skype.com/deb stable InRelease
Get:16 http://ddebs.ubuntu.com groovy Release [40.4 kB]
Get:17 http://ddebs.ubuntu.com groovy-updates Release [40.5 kB]
Get:18 http://ddebs.ubuntu.com groovy Release.gpg [819 B]
Get:19 http://ddebs.ubuntu.com groovy-updates Release.gpg [819 B]
Hit:20 https://download.sublimetext.com apt/stable/ InRelease
Ign:18 http://ddebs.ubuntu.com groovy Release.gpg
Ign:19 http://ddebs.ubuntu.com groovy-updates Release.gpg
Reading package lists... Done
W: GPG error: http://ddebs.ubuntu.com groovy Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <email address hidden>
E: The repository 'http://ddebs.ubuntu.com groovy Release' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.
W: GPG error: http://ddebs.ubuntu.com groovy-updates Release: The following signatures were invalid: EXPKEYSIG C8CAB6595FDFF622 Ubuntu Debug Symbol Archive Automatic Signing Key (2016) <email address hidden>
E: The repository 'http://ddebs.ubuntu.com groovy-updates Release' is not signed.
N: Updating from such a repository can't be done securely, and is therefore disabled by default.
N: See apt-secure(8) manpage for repository creation and user configuration details.

Is there something I should do in addition to updating ubuntu-keyring and ubuntu-dbgsym-keyring to fix this?