ci: add GitHub Action to automatically build and deploy to GitHub Pages

Author: siujamo

.github/workflows/github-pages.yml

@@ -0,0 +1,50 @@
+name: Build GitHub Pages
+
+on:
+  push:
+    branches:
+      - main
+
+jobs:
+  build:
+    name: Build and Publish
+    runs-on: ubuntu-latest
+    permissions:
+      contents: read
+
+    steps:
+      - name: Setup Node.js environment
+        uses: actions/setup-node@v3.9.1
+        with:
+          node-version: 20.x
+
+      - name: Setup pnpm
+        uses: pnpm/action-setup@v4.1.0
+        with:
+          # Version of pnpm to install
+          version: latest
+
+      - name: Install Dependencies
+        run: pnpm install
+
+      - name: Upload Artefact
+        uses: actions/upload-pages-artifact@v3
+        with:
+          path: dist/
+
+  deploy:
+    needs: build
+
+    permissions:
+      pages: write
+      id-token: write
+
+    environment:
+      name: github-pages
+      url: ${{ steps.deployment.outputs.page_url }}
+
+    runs-on: ubuntu-latest
+    steps:
+      - name: Deploy to GitHub Pages
+        id: deployment
+        uses: actions/deploy-pages@v4