Replace git-publish with actions/deploy-pages (#213)

Author: scordio

.github/workflows/main.yml

@@ -2,16 +2,19 @@ name: CI
 
 on:
   push:
-    branches:
-      - main
+    branches: [ 'main' ]
   pull_request:
-    branches:
-      - main
+    branches: [ 'main' ]
+
+permissions: {}
 
 jobs:
-  asciidoctor:
-    name: "Asciidoctor"
+
+  build-user-guide:
+
+    name: Build User Guide
     runs-on: ubuntu-latest
+
     steps:
       - uses: actions/checkout@de0fac2e4500dabe0009e67214ff5f5447ce83dd # v6.0.2
       - name: Set up JDK 11
@@ -20,12 +23,30 @@ jobs:
           distribution: 'zulu'
           java-version: 11
           cache: 'gradle'
-      - name: Run Asciidoctor
+      - name: Build User Guide
         run: ./gradlew asciidoctor
-      - name: Publish to GitHub Pages
-        if: github.repository == 'assertj/doc' && github.event_name == 'push'
-        run: ./gradlew --stacktrace --info gitPublishPush
-        env:
-          GIT_COMMITTER_NAME: GitHub Actions
-          GIT_COMMITTER_EMAIL: 41898282+github-actions[bot]@users.noreply.github.com
-          GRGIT_USER: ${{ secrets.ASCIIDOCTOR_TOKEN }}
+      - name: Upload User Guide Artifact
+        uses: actions/upload-pages-artifact@7b1f4a764d45c48632c6b24a0339c27f5614fb0b # v4.0.0
+        with:
+          path: build/docs/asciidoc/user-guide
+
+  deploy-user-guide:
+
+    name: Deploy User Guide
+    if: github.event_name == 'push' && github.ref == 'refs/heads/main'
+    runs-on: ubuntu-latest
+    needs: build-user-guide
+    permissions:
+      pages: write
+      id-token: write
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    concurrency:
+      group: github-pages
+      cancel-in-progress: true
+
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@d6db90164ac5ed86f2b6aed7e0febac5b3c0c03e # v4.0.5