PyPI wheel publishing: switch to trusted publishing (#898)

Author: mr-c

.github/workflows/wheels.yml

@@ -124,7 +124,4 @@ jobs:
 
       - uses: pypa/gh-action-pypi-publish@release/v1
         with:
-          # To test: repository-url: https://test.pypi.org/legacy/
-          user: __token__
-          password: ${{ secrets.PYPI_API_TOKEN }}
           skip-existing: true