jobs/templates/swh-pypi: Fix sdist/wheels generation and upload to PyPI
The wheel and twine packages are only available for Python 3.11 in the swh-jenkins/tox docker image so ensure to use that Python version.
Staging instance, all changes can be removed at any time
The wheel and twine packages are only available for Python 3.11 in the swh-jenkins/tox docker image so ensure to use that Python version.