Add packages for more codenames in APT repository

[jakub-tldr]

Currently we have: trixie and bookworm.

However, we should add also noble, jammy etc. so we could modify our script in documentation to automatically select APT repository codename.

example script:

[...]
sudo tee /etc/apt/sources.list.d/defguard.sources <<EOF
Types: deb
URIs: https://apt.defguard.net
Suites: $(. /etc/os-release && echo "${UBUNTU_CODENAME:-$VERSION_CODENAME}")
Components: stable
Architectures: $(dpkg --print-architecture)
Signed-By: /etc/apt/keyrings/defguard.asc
EOF

Now, users on Debian 12 will have codename set to bookworm.

(Related issue: #2959)