Test no various versions of Node.js

.github/workflows/lint.yml

@@ -15,10 +15,10 @@ jobs:
       - name: Checkout
         uses: actions/checkout@v2
 
-      - name: Use Node.js 10.x
+      - name: Use Node.js 14.x
         uses: actions/setup-node@v1
         with:
-          node-version: "10.x"
+          node-version: 14.x
 
       - name: Install npm dependencies
         run: npm ci
@@ -29,5 +29,24 @@ jobs:
       - name: Stylelint
         run: npm run lint:sass
 
+  build:
+    runs-on: ubuntu-18.04
+
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
+
+    steps:
+      - name: Checkout
+        uses: actions/checkout@v2
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install npm dependencies
+        run: npm ci --production
+
       - name: Check build
         run: npm run build