DO NOT MERGE - MNT build for josch

[zeha]

Based on the script in https://github.com/grml/grml-live/issues/336#issuecomment-2989826572

Mostly for me to understand what we're missing and how everything should work

[github-actions[bot]]

💿 ISO Build Results

The following ISO build artifacts are available from this PR:

• grml-live-build-result-initial-bookworm-arm64-REFORM.zip (570.64 MB)
• grml-live-build-result-initial-forky-arm64-REFORM.zip (570.64 MB)
• grml-live-build-result-initial-trixie-arm64-REFORM.zip (570.64 MB)

Note: Downloads are ZIP files containing the ISO images. You need to be logged into GitHub to download. Artifacts are available for 15 days.

Build Information:

• Workflow Run: 20429833149
• Commit: be5718e

[github-actions[bot]]

🐳 Docker image for this PR is available:

docker pull ghcr.io/grml/grml-live:pr-374