update PyPI build action to latest v4

[valeriupredoi]

Description

Updates setup-python action to latest v4 to work with latest Pythons

Before you get started

• ~[ ] ☝ Create an issue to discuss what you are going to do~

Checklist

• [x] This pull request has a descriptive title and labels
• [x] This pull request has a minimal description (most was discussed in the issue, but a two-liner description is still desirable)
• ~[ ] Unit tests have been added (if codecov test fails)~
• [x] Any changed dependencies have been added or removed correctly (if need be)
• [x] All tests pass

[codecov[bot]]

Codecov Report

All modified lines are covered by tests :white_check_mark:

:loudspeaker: Thoughts on this report? Let us know!.