Fix workflow

Author: hovnatan

.github/workflows/pypi_dist.yml

@@ -16,6 +16,7 @@ jobs:
       - name: Install dependencies
         run: |
           python -m pip install --upgrade pip
+          pip install setuptools wheel twine numpy
           python setup.py sdist
           - name: Publish distribution to PyPI
             if: startsWith(github.ref, 'refs/tags')