update version of setup-python

[pionere]

No description provided.

[MehdiChinoune]

GHA shows this warning:

Node.js 16 actions are deprecated. Please update the following actions to use Node.js 20:
actions/setup-python@v4, jurplel/install-qt-action/action@v3.
For more information see:
https://github.blog/changelog/2023-09-22-github-actions-transitioning-from-node-16-to-node-20/.

[pzhlkj6612]

Hi! This actions itself is using node.js 16, so we need to do more updates. Please see #222 .

[MehdiChinoune]

Hi! This actions itself is using node.js 16, so we need to do more updates. Please see #222 .

Why not node20?

[pzhlkj6612]

Why not node20?

Fixed. I did a wrong modification. @MehdiChinoune , thank you!