Upgrade actions/upload-pages-artifact v1.0.4 -> v1.0.5 (#353)

See:
- https://github.com/actions/upload-pages-artifact/releases/tag/v1.0.5
- actions/upload-pages-artifact@v1.0.4...v1.0.5

.github/workflows/deploy-website.yaml

@@ -30,7 +30,7 @@ jobs:
         # "Refaster rules" terminology on our website and in the code.
         run: bundle exec htmlproofer --disable_external true --check-external-hash false ./_site
       - name: Upload website as artifact
-        uses: actions/[email protected].4
+        uses: actions/[email protected].5
         with:
           path: ./website/_site
   deploy: