Add deb package generation and storage

[MickaelOnTheWave]

GitHub actions provide means to do that. What needs to be done is :

• [x] Automatically generate a deb package
• [x] Have/Create a space in Docker / somewhere to store the packages
• [ ] Copy the deb package in the space.

Some documentation for this is available here : https://docs.github.com/en/packages/managing-github-packages-using-github-actions-workflows/publishing-and-installing-a-package-with-github-actions

[MickaelOnTheWave]

Packages GitHub space does not support creating deb packages. No solution is acceptable :

• Deploy to a Docker image : would work, but the desired output is a deb package, not a docker image. Not usable by end users.
• Upload to an external space : would work, but wouldn't be integrated with GitHub. No added value.
• Add the deb package to the repository : would pollute the repository with binaries. It should be source code only.