migrates to GHA (#145)

Author: viglucci

.github/workflows/test.yml

@@ -0,0 +1,22 @@
+name: Tests
+on: [push, pull_request]
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        node-version: [10.x, 12.x, 14.x, 16.x]
+
+    steps:
+      - uses: actions/checkout@v2
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v2
+        with:
+          node-version: ${{ matrix.node-version }}
+      - name: Install Yarn
+        run: npm install -g yarn
+      - run: yarn
+      - run: yarn build
+      - run: yarn test