GitHub Actions

setup-python

Will use .python-version and doesn't require a version

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Currently doesn't support Debian images (only [GitHub Action supported environments])

Discovered when messing with Act, and received a similar error:

The version '3.14.6' with architecture 'x64' was not found for this operating system
The list of all available versions can be found here: https://raw.githubusercontent.com/actions/python-versions/main/versions-manifest.json

Sources:

1. actions/setup-python#913 - ticket defining problem
2. GitHub Actions supported environments