Parallelize jobs in GitHub Actions (#1173)

.github/workflows/test.workflow.yml

@@ -1,14 +1,26 @@
-name: lint, test, and build
+name: CI
 
 # run when action is manually triggered
 # or when a pull request is made
 on: [workflow_dispatch, pull_request]
 
 jobs:
-  # job id/key
-  lint-test-and-build:
-    # job name
-    name: Lint, Test, and Build
+  lint:
+    name: Lint
+
+    runs-on: ubuntu-latest
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: "14.x"
+      - run: npm ci
+      - run: npm run lint
+
+  test:
+    name: Test
+
     runs-on: ubuntu-latest
 
     strategy:
@@ -17,19 +29,25 @@ jobs:
 
     steps:
       - uses: actions/checkout@v2
-      - name: Set up Node ${{ matrix.node-version }}
-        uses: actions/setup-node@v1
+      - uses: actions/setup-node@v1
         with:
           node-version: ${{ matrix.node-version }}
-          check-latest: true
-      - uses: actions/cache@v2
-        with:
-          path: ~/.npm
-          key: ${{ runner.os }}-node-${{ hashFiles('**/package-lock.json') }}
-          restore-keys: |
-            ${{ runner.os }}-node-
-
       - run: npm ci
-      - run: npm run lint
       - run: npm test
+
+  build:
+    name: Build
+
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [12.x, 14.x]
+
+    steps:
+      - uses: actions/checkout@v2
+      - uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm ci
       - run: npm run generate