Merge pull request graphnet-team#805 from sevmag/fix_workflow

Fix paper workflow

Author: sevmag

.github/workflows/paper.yml

@@ -22,7 +22,7 @@ jobs:
           # This should be the path to the paper within your repo.
           paper-path: paper/paper.md
       - name: Upload
-        uses: actions/upload-artifact@v1
+        uses: actions/upload-artifact@v4
         with:
           name: paper
           # This is the output path where Pandoc will write the compiled