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

Author: renovate[bot]

.github/workflows/website.yml

@@ -17,7 +17,7 @@ jobs:
           node-version: node
       - run: npm ci
       - run: npm run docs
-      - uses: actions/upload-pages-artifact@v3
+      - uses: actions/upload-pages-artifact@v4
         with:
           path: public
       - uses: actions/deploy-pages@v4