Update actions/upload-pages-artifact action to v4

Author: renovate[bot]

.github/workflows/github-pages.yaml

@@ -50,7 +50,7 @@ jobs:
         env:
           BASE_URL: "${{ steps.pages.outputs.base_url }}/"
       - name: Upload artifact
-        uses: actions/upload-pages-artifact@56afc609e74202658d3ffba0e8f6dda462b719fa # v3
+        uses: actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b # v4
         with:
           path: ./docs/public
           # Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages