feat: ✨ Update to support python 3.14

[Paillat-dev]

Summary

Depends on: #3187

Actually marks py-cord as supporting python 3.14 metadata-wise and in github actions workflows.

Information

• This PR fixes an issue.
• This PR adds something new (e.g. new method or parameters).
• This PR is a breaking change (e.g. methods or parameters removed/renamed).
• This PR is not a code change (e.g. documentation, README, typehinting,
  examples, ...).

Checklist

• I have searched the open pull requests for duplicates.
• If code changes were made then they have been tested.
  • I have updated the documentation to reflect the changes.
• If type: ignore comments were used, a comment is also left explaining why.
• I have updated the changelog to include these changes.

[pycord-app]

Thanks for opening this pull request!
Please make sure you have read the Contributing Guidelines and Code of Conduct.

This pull request can be checked-out with:

git fetch origin pull/2948/head:pr-2948
git checkout pr-2948

This pull request can be installed with:

pip install git+https://github.com/Pycord-Development/pycord@refs/pull/2948/head

[NeloBlivion]

Does this require anything beyond #2645?

[Lulalaby]

Drafting

[Paillat-dev]

Does this require anything beyond #2645?

Maybe stuff related to voice idk

[Lulalaby]

I put that on hold for the next release

[VenomousSteam81]

Is anything in this PR usable at all? I would at least like to try and get my bot online.