ci(deps): bump actions/upload-pages-artifact from 3 to 4 (#16)

Author: dependabot[bot]

.github/workflows/docs.yml

@@ -46,7 +46,7 @@ jobs:
           npm run build
 
       - name: Upload build artifacts
-        uses: actions/upload-pages-artifact@v3
+        uses: actions/upload-pages-artifact@v4
         with:
           path: docs-site/dist