Update GH workflow to use new deploy pages action

.github/workflows/build_website.yml

@@ -8,30 +8,50 @@ on:
     # https://docs.github.com/en/actions/using-workflows/workflow-syntax-for-github-actions#on
   # Allows you to run this workflow manually from the Actions tab
   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"
+  cancel-in-progress: false
+
 jobs:
   deploy:
     name: Deploy to GitHub Pages
     runs-on: ubuntu-latest
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
     steps:
-      - uses: actions/checkout@v2
-      - uses: actions/setup-node@v3
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Setup Node
+        uses: actions/setup-node@v4
         with:
-          node-version: 18
+          node-version: 22
           cache: npm
-      - name: Configure Git
-        run: |
-          git config user.name "Publisher"
-          git config user.email "publisher@users.noreply.github.com"
-      - name: Build website
-        run: npm install
+
+      - name: Install dependencies
+        run: npm ci
+
       - name: Build website
         run: npm run build
-      - name: Switch to branch 'gh-pages'
-        run: |
-          git branch -f gh-pages HEAD
-          git checkout gh-pages
-      - run: |
-          cp CNAME build/CNAME
-          git add -f build/
-          git commit -m "Publish"
-          git push -f origin `git subtree split -P build`:refs/heads/gh-pages
+
+      - name: Setup Pages
+        uses: actions/configure-pages@v5
+
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: ./build
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4