Simplify GitHub Pages deployment to fix permissions

- Switched back to peaceiris/actions-gh-pages@v3 action
- Removed environment protection that was blocking deployment
- Used simple contents:write permission instead of pages environment
- Added force_orphan to ensure clean gh-pages branch

Author: fahdi

.github/workflows/deploy.yml

@@ -5,19 +5,10 @@ on:
     branches: [ main ]
 
 permissions:
-  contents: read
-  pages: write
-  id-token: write
-
-concurrency:
-  group: pages
-  cancel-in-progress: false
+  contents: write
 
 jobs:
   deploy:
-    environment:
-      name: github-pages
-      url: ${{ steps.deployment.outputs.page_url }}
     runs-on: ubuntu-latest
 
     steps:
@@ -38,14 +29,9 @@ jobs:
     - name: Build documentation
       run: npm run docs:build
 
-    - name: Setup Pages
-      uses: actions/configure-pages@v4
-      
-    - name: Upload artifact
-      uses: actions/upload-pages-artifact@v3
-      with:
-        path: docs/.vitepress/dist
-        
     - name: Deploy to GitHub Pages
-      id: deployment
-      uses: actions/deploy-pages@v4
+      uses: peaceiris/actions-gh-pages@v3
+      with:
+        github_token: ${{ secrets.GITHUB_TOKEN }}
+        publish_dir: docs/.vitepress/dist
+        force_orphan: true