ci: init workflow

.github/workflows/ci.yml

@@ -0,0 +1,35 @@
+name: CI
+
+on:
+  push:
+    branches:
+      - 'socket.io-parser/3.3.x'
+
+permissions:
+  contents: read
+
+jobs:
+  test-node:
+    runs-on: ubuntu-latest
+    timeout-minutes: 10
+
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version:
+          - 16
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v6
+
+      - name: Use Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v6
+        with:
+          node-version: ${{ matrix.node-version }}
+
+      - name: Install dependencies
+        run: npm ci
+
+      - name: Run tests
+        run: npm test