feat: add CI workflow (#4)

.github/workflows/ci.yml

@@ -0,0 +1,35 @@
+name: CI
+
+on:
+  push:
+    branches: [ main ]
+  pull_request:
+    branches: [ main ]
+
+permissions:
+  contents: read
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest, macos-latest, windows-latest]
+        node: [18, 19, 20, 21, 22, 23]
+
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@11bd71901bbe5b1630ceea73d27597364c9af683 # v4.2.2
+
+      - name: Setup Node.js
+        uses: actions/setup-node@1a4442cacd436585916779262731d5b162bc6ec7 # v3.8.2
+        with:
+          node-version: ${{ matrix.node }}
+
+      - name: Install dependencies
+        run: npm install
+
+      - name: Run tests
+        run: npm test