Add build workflow

.github/workflows/build.yml

@@ -0,0 +1,35 @@
+---
+
+name: Build
+
+on:
+  pull_request:
+    branches:
+      - trunk
+  push:
+    branches:
+      - trunk
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [14]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Setup Node.js
+        uses: actions/setup-node@v2.5.1
+        with:
+          cache: 'npm'
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install
+        run: npm install
+
+      - name: Build
+        run: npm run build

.github/workflows/lint.yml

@@ -16,7 +16,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [14, 16]
+        node-version: [14]
 
     steps:
       - name: Checkout