Fix PyPI token reference

Author: Gerrit-K

.github/workflows/build_and_upload.yml

@@ -62,6 +62,6 @@ jobs:
       - uses: "pypa/gh-action-pypi-publish@v1.5.0"
         with:
           user: __token__
-          password: ${{ secrets.pypi_password }}
+          password: ${{ secrets.PYPI_TOKEN }}
           print_hash: true
           verbose: true