Merge pull request #12 from uwescience/dependabot/github_actions/actions/deploy-pages-4

Bump actions/deploy-pages from 2 to 4

Author: valentina-s

.github/workflows/deploy-book.yml

@@ -57,4 +57,4 @@ jobs:
     # Deploy the book's HTML to GitHub Pages
     - name: Deploy to GitHub Pages
       id: deployment
-      uses: actions/deploy-pages@v2
+      uses: actions/deploy-pages@v4