add workflow file

.github/workflows/nodejs.yml

@@ -0,0 +1,28 @@
+name: Node.js CI
+
+on:
+  push:
+    # branches: [ main ]
+  pull_request:
+    # branches: [ main ]
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [14.x, 16.x, 18.x]
+
+    steps:
+    - uses: actions/checkout@v3
+    - name: Use Node.js ${{ matrix.node-version }}
+      uses: actions/setup-node@v3
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+
+    - name: Install dependencies
+      run: npm ci
+
+    - name: Run Japa tests
+      run: npm test