Update sites-workflow.yml

Author: a5dur

.github/workflows/sites-workflow.yml

@@ -73,7 +73,7 @@ jobs:
         CKAN_API_KEY: ${{ secrets.CKAN_API_KEY }}
 
     - name: Archive artifacts
-      uses: actions/upload-artifact@v3
+      uses: actions/upload-artifact@v4
       if: always()
       with:
         name: workflow-outputs