Add GitHub Pages workflow for Doxygen docs

Author: gcardi

.github/workflows/pages-docs.yml

@@ -0,0 +1,47 @@
+name: Publish Doxygen Docs
+
+on:
+  push:
+    branches:
+      - main
+    paths:
+      - docs/**
+      - Doxyfile
+      - .nojekyll
+      - .github/workflows/pages-docs.yml
+  workflow_dispatch:
+
+permissions:
+  contents: read
+  pages: write
+  id-token: write
+
+concurrency:
+  group: pages
+  cancel-in-progress: false
+
+jobs:
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+
+      - name: Configure GitHub Pages
+        uses: actions/configure-pages@v5
+
+      - name: Ensure no-jekyll marker exists
+        run: |
+          touch docs/.nojekyll
+
+      - name: Upload pages artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs
+
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4