Downgraded Python version to 3.12.3

[SmartManoj]

Temporarily fixes #2330

Consistent with #885

[tobitege]

3.12.3 might be better pydantic/pydantic#9609 (comment)

[SmartManoj]

Consistent with #885

For non-docker method, we are currently using 3.11 only. It will avoid confusion for new users.

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Slack thread

@enyst

[enyst]

AFAIK, we were using 3.12, when eventually we found out too many users were running into an issue with a Chroma dependency on 3.12, and we have downgraded for that reason, temporarily.

I would personally favor keeping 3.12 as much as we can, and go the other way around: hope to fix issues that prevent the upgrade, rather than continue downgrading.

That said ... it is a bit weird at this time. 😅

[neubig]

If 3.12.3 solves the problem I generally prefer going with newer versions of things myself.

[enyst]

My fault for the confusion. I did think our mix of python versions was a bit too funny. But this is the full app image that people run, and it works as it is.

This is only an issue with building it, and there's a PR on pydantic so it will be fixed upstream.

If we're okay with trying 3.12.3, this is a successful test for the edits suggested:
https://github.com/enyst/OpenDevin/actions/runs/9431038477/job/25979245963?pr=6

[SmartManoj]

#1664 (comment)

[xingyaoww]

LGTM