ci: Use GH Actions to deploy docs

Author: rkunev

Diff for: .github/workflows/build.yml

@@ -4,6 +4,18 @@ on:
       - main
   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:
   build:
     name: Code quality
@@ -27,3 +39,23 @@ jobs:
         with:
           token: ${{ secrets.CODECOV_TOKEN }}
           verbose: true
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+      - name: Build with VitePress
+        run: bun run docs:build
+      - name: Upload artifact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: docs/.vitepress/dist
+
+  deploy:
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+    needs: build
+    runs-on: ubuntu-latest
+    name: Deploy
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4