add build step

Author: emnbdx

.github/workflows/python.yml

@@ -29,6 +29,10 @@ jobs:
       - name: Test with pytest
         run: |
           pytest --cov=helloasso_python
+      - name: Build package
+        run: |
+          pip install build
+          python -m build
       - name: upload dists
         uses: actions/upload-artifact@v4
         with: