feat: adding a build github action

.github/workflows/build.yaml

@@ -0,0 +1,32 @@
+name: 'Build'
+
+on: push
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      fail-fast: true
+      matrix:
+        node-version: [10.x, 12.x, 14.x]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v1
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Cache Node.js modules
+        uses: actions/cache@v2
+        with:
+          # yarn cache files are stored in `~/.cache/yarn` on Linux/macOS
+          path: ~/.cache/yarn
+          key: ${{ runner.OS }}-node-${{ hashFiles('**/yarn.lock') }}
+          restore-keys: |
+            ${{ runner.OS }}-node-
+            ${{ runner.OS }}-
+      - name: Install dependencies
+        run: yarn --frozen-lockfile
+      - name: Run tests
+        run: yarn test