Update gh-pages deploy

Author: ehsanmok

.github/workflows/gh-pages.yml

@@ -8,10 +8,16 @@ on:
     branches:
       - master
 
+# Allow only one concurrent deployment
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
 jobs:
   deploy:
     runs-on: ubuntu-latest
     if: ${{ github.event.workflow_run.conclusion == 'success' }}
+    timeout-minutes: 15
     steps:
       - name: Checkout
         uses: actions/checkout@v4
@@ -26,7 +32,7 @@ jobs:
         run: pixi run book-build
 
       - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+        uses: peaceiris/actions-gh-pages@v4
         with:
           github_token: ${{ secrets.GITHUB_TOKEN }}
           publish_branch: gh-pages