Merge pull request #631 from Shopify/dependabot/github_actions/actions-87dff395f6

Author: sambostock

.github/workflows/github-pages.yml

@@ -25,7 +25,7 @@ jobs:
         run: npm run build
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3.9.3
+        uses: peaceiris/actions-gh-pages@v4.0.0
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_dir: ./_site