[CI] Avoid Reduntant upload of Source Distributions from every Job of Build/Test Matrix

[boromir674]

On Prod Deployment to PyPI pypi.org this delays the download of "built" distributions from CI Artifacts.

https://github.com/boromir674/cookiecutter-python-package/actions/runs/7302874867/job/19902413234

But, for now this 2.5 minutes artifact download duration, is not too critical, compared to other priorities.