Automate package versioning

Summary

Adopt the automated versioning as done in the template python project: https://gitlab.cta-observatory.org/cta-computing/documentation/python-project-template

What is the expected correct behavior?

Relevant logs and/or screenshots

changed milestone to %DPPS REL0.1 : Pipelines integration

added enhancement in progress labels

assigned to @mdalchen

marked this issue as related to #168

mentioned in merge request !122 (merged)

mentioned in commit ac4a278d

closed with merge request !122 (merged)