Consider publishing zsync and hash data like Wezterm

[lwbt]

When you look at https://github.com/wez/wezterm/releases you can see that he does not only publish the image but also the metadata for the updater tool. Not everyone using AppImage is using the updater, but not publishing the data leads to a chicken and egg situation and might be a blocker to get the work upstreamed.

Note: I only saw this repository and the discussion upstream after I started working at my own attempt in another repository. Eventually some parts, which are mostly based on code I found in Wezterm, can be integrated here like making appdata a separate file. You it's possible that the update data is not generated, but it is in Wezterm and in my builds: https://github.com/lwbt/build-ghostty/blob/c4cc444cc9e8955fe1720ed2e68d54e790385ea9/ci/appimage.sh#L52

[psadi]

Hey @lwbt,

Zsync has been in the works and has been implemented in pr #4. Appdata Metainfo is added manually of as part of pr #3

You should see the zsync files auto-published from next release