update actions/upload-artifact to v4

Author: lukaskratzel

.github/workflows/python-package.yml

@@ -78,7 +78,7 @@ jobs:
       run: python3 -m build
 
     - name: Store the distribution packages
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       with:
         name: python-package-distributions
         path: dist/