User Guide: Explain how the version of poetry and python is retrieved

[ckunki]

The GitHub workflows generated by the PTB contain versions of Poetry and Python for step exasol/python-toolbox/.github/actions/python-environment in some jobs.

PTB enables individual projects to configure specific versions of Poetry and Python.

So if the PTB's default version were Python 3.9, but your project had a minimum of Python 3.10, then you don't need to wait for the PTB to upgrade but can override the PTB's default in your project.

Details

• PTB retrieves the Python version from the minimum python version defined in file pyproject.toml
• PTB defines a default for the Poetry version. Individual project can override it in file noxconfig.py.

[ArBridgeman]

@ckunki
This is attempted to be described here:
https://exasol.github.io/python-toolbox/main/user_guide/features/github_workflows/index.html
Please modify this as well if needed.

In particular, note the code section showing github_template_dict.