Bump actions/upload-artifact in /.github/workflows in the actions group (#55)

Author: dependabot[bot]

.github/workflows/draft-pdf.yml

@@ -19,7 +19,7 @@ jobs:
           # This should be the path to the paper within your repo.
           paper-path: paper/paper.md
       - name: Upload
-        uses: actions/upload-artifact@v5
+        uses: actions/upload-artifact@v6
         with:
           name: paper
           # This is the output path where Pandoc will write the compiled