ci: add jobs to build website on each push

.github/workflows/build.yml

@@ -0,0 +1,36 @@
+name: Build website
+
+on:
+  push:
+  pull_request:
+    branches: [production]
+    types: [opened, synchronize, closed]
+
+# 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: build
+  cancel-in-progress: false
+
+jobs:
+  # Build job
+  build:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 0 # Not needed if lastUpdated is not enabled
+      # - uses: pnpm/action-setup@v2 # Uncomment this if you're using pnpm
+      # - uses: oven-sh/setup-bun@v1 # Uncomment this if you're using Bun
+      - name: Setup Node
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+          cache: yarn
+      - name: Setup Pages
+        uses: actions/configure-pages@v4
+      - name: Install dependencies
+        run: yarn install
+      - name: Build with VitePress
+        run: yarn docs:build