Update .github/workflows/pypi.yml

Author: twiecki

.github/workflows/pypi.yml

@@ -76,7 +76,7 @@ jobs:
         run: |
           PYODIDE=1 python setup.py bdist_wheel --universal
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: universal_wheel
           path: dist/*.whl