Remove repository-url parameter from PyPI publish step

```
25hERROR    InvalidPyPIUploadURL: It appears you're trying to upload to pypi.org   
         but have an invalid URL. You probably want one of these two URLs:      
         https://upload.pypi.org/legacy/ or https://test.pypi.org/legacy/. Check
         your --repository-url value.   
```

.github/workflows/release.yml

@@ -26,4 +26,3 @@ jobs:
         uses: "pypa/gh-action-pypi-publish@release/v1"
         with:
           password: "${{ secrets.PYPI_TOKEN }}"
-          repository-url: "https://pypi.org/project/viscm/"