Update the GitHub Pages workflow.

Author: kacpnowak

.github/workflows/pages.yml

@@ -1,14 +1,27 @@
-name: Docs
-on: [push, pull_request, workflow_dispatch]
+name: Deploy Documentation
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+  workflow_dispatch:
+
 permissions:
-    contents: write
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: "pages"
+  cancel-in-progress: false
+
 jobs:
-  docs:
+  build:
     runs-on: ubuntu-latest
     steps:
-      - uses: actions/checkout@v3
+      - uses: actions/checkout@v4
 
-      - uses: actions/setup-python@v3
+      - uses: actions/setup-python@v5
         with:
           python-version: '3.10' 
 
@@ -23,11 +36,20 @@ jobs:
           cd docs
           make html
 
-      - name: Deploy
-        uses: peaceiris/actions-gh-pages@v3
+      - name: Upload artifact
         if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+        uses: actions/upload-pages-artifact@v3
         with:
-          publish_branch: gh-pages
-          github_token: ${{ secrets.GITHUB_TOKEN }}
-          publish_dir: docs/_build/html
-          force_orphan: true
+          path: docs/_build/html
+
+  deploy:
+    if: ${{ github.event_name == 'push' && github.ref == 'refs/heads/main' }}
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    needs: build
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4