The common pipeline is explicitly an Auto DevOps one. Auto DevOps tries
to conditionally enable itself depending on which files are present.
Notably if one has a `pyproject.toml` file but no `setup.py` file, it
doesn't enable itself.

Auto DevOps assumes that a Python project will have at least one of
`requirements.txt` or `setup.py`. Both of these files are replaced by
`pyproject.toml`.