feat: add .python-version and use it in GHA

[fredrikaverpil]

Background

In a nutshell, instead of defining the desired Python interpreter version in multiple places, it's possible to make use of the .python-version file which can be read by pyenv and GitHub Actions.

When detected, the desired interpreter version is set.

Changes

• Add the .python-version file, set the value to correspond to the one used in the Dockerfile.
• Consume the .python-version file in the relevant GitHub Actions workflows.
• Remove the .python-version from .gitignore.

Documentation

I added an explanation in the commit message.

Test Plan

CI will fail if this change doesn't work.

PR Quality Checklist

These are likely not applicable.

• [x] My pull request is atomic and focuses on a single change.
• [ ] I have thoroughly tested my changes with multiple different prompts.
• [ ] I have considered potential risks and mitigations for my changes.
• [ ] I have documented my changes clearly and comprehensively.
• [ ] I have not snuck in any "extra" small tweaks changes

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1 Ignored Deployment

Name	Status	Preview	Comments	Updated (UTC)
docs	⬜️ Ignored (Inspect)			Apr 30, 2023 1:03pm

[k-boikov]

Does that solve any issues?

[fredrikaverpil]

To be honest, not really. This is more of a convenience for e.g. pyenv users.

Feel free to close if you think it's not useful.

[p-i-]

This is a mass message from the AutoGPT core team. Our apologies for the ongoing delay in processing PRs. This is because we are re-architecting the AutoGPT core!

For more details (and for infor on joining our Discord), please refer to: https://github.com/Significant-Gravitas/Auto-GPT/wiki/Architecting

[github-actions[bot]]

This pull request has conflicts with the base branch, please resolve those so we can evaluate the pull request.