updated ci

Author: maumueller

.github/workflows/ci.yml

@@ -56,7 +56,7 @@ jobs:
           python3 eval/eval.py res.csv
           python3 eval/plot.py --task task1 res.csv
           python3 eval/plot.py --task task2 res.csv
-      - uses: actions/upload-artifact@v3
+      - uses: actions/upload-artifact@v4
         with:
           name: Results
           path: |