Set up pypi publish with trusted-publishing

[utensil]

See

• https://github.com/pypa/gh-action-pypi-publish/tree/release/v1/?tab=readme-ov-file#trusted-publishing
• https://docs.pypi.org/trusted-publishers/adding-a-publisher/
• maintainers please check https://pypi.org/manage/project/galgebra/settings/publishing/ as I have set up the trusted publishing for pygae/galgebra there

[utensil]

This should fix and update the pypi release process, will merge when all CI turn green.

[codecov]

Codecov Report

All modified and coverable lines are covered by tests ✅

Project coverage is 78.05%. Comparing base (25d432e) to head (b8ae6c3).

Additional details and impacted files

@@           Coverage Diff           @@
##           master     #509   +/-   ##
=======================================
  Coverage   78.05%   78.05%           
=======================================
  Files          17       17           
  Lines        4196     4196           
=======================================
  Hits         3275     3275           
  Misses        921      921           

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