Update workflow

.github/workflows/mdbook.yml

@@ -1,51 +1,44 @@
-# Sample workflow for building and deploying a mdBook site to GitHub Pages
-#
-# To get started with mdBook see: https://rust-lang.github.io/mdBook/index.html
-#
 name: Deploy mdBook site to Pages
 
 on:
-  # Runs on pushes targeting the default branch
   push:
-    branches: ["mdbook"]
-
-  # Allows you to run this workflow manually from the Actions tab
+  pull_request:
   workflow_dispatch:
 
-# Sets permissions of the GITHUB_TOKEN to allow deployment to GitHub Pages
 permissions:
   contents: read
-  pages: write
-  id-token: write
 
-# Allow only one concurrent deployment, skipping runs queued between the run in-progress and latest queued.
-# However, do NOT cancel in-progress runs as we want to allow these production deployments to complete.
 concurrency:
-  group: "pages"
+  group: "pages-${{ github.ref }}"
   cancel-in-progress: false
 
 jobs:
-  # Build job
   build:
+    name: Build Site
     runs-on: ubuntu-latest
     env:
-      MDBOOK_VERSION: 0.4.36
+      MDBOOK_VERSION: v0.4.40
     steps:
       - uses: actions/checkout@v4
       - name: Install mdBook
-        run: curl -L https://github.com/rust-lang/mdBook/releases/download/v0.4.40/mdbook-v0.4.40-x86_64-unknown-linux-gnu.tar.gz | tar xz
+        run: curl -L "https://github.com/rust-lang/mdBook/releases/download/$MDBOOK_VERSION/mdbook-$MDBOOK_VERSION-x86_64-unknown-linux-gnu.tar.gz" | tar xz
       - name: Build with mdBook
         run: ./mdbook build
       - name: Upload artifact
         uses: actions/upload-pages-artifact@v3
         with:
           path: ./book
 
-  # Deployment job
   deploy:
+    name: Deploy Site
+    permissions:
+      contents: read
+      pages: write
+      id-token: write
     environment:
       name: github-pages
       url: ${{ steps.deployment.outputs.page_url }}
+    if: github.ref == format('refs/heads/{0}', github.event.repository.default_branch)
     runs-on: ubuntu-latest
     needs: build
     steps: