Add testing and linting in GitHub Actions

.github/workflows/ci.yaml

@@ -0,0 +1,32 @@
+name: CI
+on: 
+  push:
+    branches:
+      - otax/production
+  pull_request:
+
+jobs:
+  test:
+    runs-on: ubuntu-latest
+    steps:
+    - uses: actions/checkout@v2
+    - uses: actions/setup-node@v2
+      with:
+        cache: 'npm'
+    - run: npm install --include=dev
+    - run: better-npm-run test
+
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [14.x, 16.x, 18.x]
+    steps:
+    - uses: actions/checkout@v2
+    - name: Set up Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v1
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+    - run: npm install --include=dev
+    - run: npm run lint