Add a build action to the CI to create the artifacts

[baby-gnu]

Describe the feat you'd like

Build the release archives (.tag.gz, .zip) and the docker images automatically from the CI.

Is your feature request related to a problem? Please describe.

The actual source can't be installed as described in the documentation since the assets need to be rebuild according to the contribute documentation.

Additional context

The global idea would be to have an empty dist/ directory and avoid having the generated files in the git source tree.