Update build-wheels-and-publish-to-pipy.yml

Author: fwilliams

.github/workflows/build-wheels-and-publish-to-pipy.yml

@@ -50,7 +50,7 @@ jobs:
       - name: Build sdist
         run: pipx run build --sdist
 
-      - uses: actions/upload-artifact@v2
+      - uses: actions/upload-artifact@v4
         with:
           path: dist/*.tar.gz