Der Projekt-Lifecycle auf git.rwth-aachen.de (Siehe: https://help.itc.rwth-aachen.de/service/ubrf9cmzd17m/article/1a0cfe327ffd46d7a62ab48df29c5b72/) wurde repariert und arbeitet derzeit ausstehende Projekte ab. Daher kommt es zu erhöhtem Mail-Aufkommen bei Projekten mit längerer Inaktivität.
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The project lifecycle on git.rwth-aachen.de (see: https://help.itc.rwth-aachen.de/service/ubrf9cmzd17m/article/1a0cfe327ffd46d7a62ab48df29c5b72/) has been repaired and is currently processing pending projects. As a result, there is an increased volume of mail for projects with longer periods of inactivity.
This MR adds the new stages package and upload to the CI pipeline. The upload job is only performed for Version-Tags (vX.X.X), which are protected in GitLab to be only created by Maintainers.
Additionally, this MR fixes the setup.py to exclude the tests from the distribution package.