Bump Python version to 3.12

[Kyle-Neale]

What does this PR do? What is the motivation?

Update python.md to mention Python 3.12 and not 3.11.
We're bumping the Python version to 3.12: DataDog/integrations-core#18212

Merge instructions

• Please merge after reviewing

Additional notes

[github-actions]

Preview links (active after the build_preview check completes)

Modified Files

• https://docs-staging.datadoghq.com/kyleneale/bump_python_312/developers/integrations/python

[Kyle-Neale]

/merge

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[Kyle-Neale]

/merge

[dd-devflow]

🚂 MergeQueue: waiting for PR to be ready

This merge request is not mergeable yet, because of pending checks/missing approvals. It will be added to the queue as soon as checks pass and/or get approvals.
Note: if you pushed new commits since the last approval, you may need additional approval.
You can remove it from the waiting list with /remove command.

Use /merge -c to cancel this operation!

[dd-devflow]

⚠️ MergeQueue: This merge request was unqueued

This merge request was unqueued

If you need support, contact us on Slack #devflow!