chore(deps): update actions/upload-pages-artifact action to v4 (#51)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Author: renovate[bot]

.github/workflows/publish.yaml

@@ -35,7 +35,7 @@ jobs:
       - run: pip install -r requirements.txt
       - run: mkdocs build
       - name: Upload Artifact
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: site/