get rid of pip and migrate to uv

[romain-fontugne]

This PR migrates to code to uv and get rids of pip. It fixes some troubles with newer python versions.

Types of changes

• Bug fix (non-breaking change which fixes an issue)
• New feature (non-breaking change which adds functionality)
• Breaking change (fix or feature that would cause existing functionality to change)

Checklist:

• My code follows the code style of this project.
• My change requires a change to the documentation.
• I have updated the documentation accordingly.

[m-appel]

LGTM