Add support for Python 3.14

[ulgens]

Adds support for Python 3.14

Depends on:

• Fix testing matrix #97
• Update uv #101

I'll rebase the branch when all dependencies are merged.

[dpranke]

Thanks for the PR! It looks like this overlaps with your other PRs, though?

Per my comments on them, I don't really want to test every version of Python. I'm happy to accept a PR that adds support for 3.14 and updates the actions, though.

[ulgens]

Thanks for the PR! It looks like this overlaps with your other PRs, though?

Yep, I was planning to rebase the draft PRs when their dependencies are merged. I'll rebase this one when #96 is merged and will remove the unrelated commits.

Edit: I updated the dependencies in PR details. Because #97 wasn't actually dependent on #96 and it got merged separately, this PR is now dependent on #96 too.

Edit: Following up the creation of #101, I'm updating the dependencies once again.

[dpranke]

We can close this now, since we've landed the changes separately, right?

[dpranke]

Oh, I think we still need the change to ci.yml to include 3.14 ... do you want to upload a PR for that, or shall I?

[ulgens]

do you want to upload a PR for that, or shall I?

This PR was intended for that change. Rebased it, should be okay now.

[dpranke]

Thank you!