Merge pull request #393 from stan-dev/dependabot/github_actions/JamesIves/github-pages-deploy-action-4.7.4

Bump JamesIves/github-pages-deploy-action from 4.5.0 to 4.7.4

Author: jgabry

.github/workflows/pkgdown.yml

@@ -54,7 +54,7 @@ jobs:
         shell: Rscript {0}
 
       - name: Deploy to GitHub pages 🚀
-        uses: JamesIves/github-pages-deploy-action@v4.5.0
+        uses: JamesIves/github-pages-deploy-action@v4.7.4
         with:
           clean: false
           branch: gh-pages