artifact v3 is deprecated; request v4

Author: wlav

.github/workflows/cling-wheels.yml

@@ -113,7 +113,7 @@ jobs:
         run: |
           python -m cibuildwheel cling --output-dir wheelhouse
 
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           path: ./wheelhouse/*.whl