Bump netlify action version

Author: juliasilge

.github/workflows/bookdown.yaml

@@ -34,7 +34,7 @@ jobs:
       - name: Deploy to Netlify
         if: contains(env.isExtPR, 'false')
         id: netlify-deploy
-        uses: nwtgck/actions-netlify@v1.1
+        uses: nwtgck/actions-netlify@v3.0
         with:
           publish-dir: './_book'
           production-branch: master