ci: re-add build stage to pypi release (#25)

.github/workflows/python-publish.yml

@@ -19,5 +19,16 @@ jobs:
 
     steps:
     - uses: actions/checkout@v4
+    - name: Set up Python
+      uses: actions/setup-python@v2
+      with:
+        python-version: '3.x'
+    - name: Install dependencies
+      run: |
+        python -m pip install --upgrade pip
+        pip install setuptools wheel twine
+    - name: Build package
+      run: |
+        python setup.py sdist bdist_wheel
     - name: Publish package distributions to PyPI
       uses: pypa/gh-action-pypi-publish@release/v1