feat(ci): Add CI tests

.github/workflows/ci.yml

@@ -0,0 +1,28 @@
+name: CI
+on:
+  push:
+  pull_request:
+
+jobs:
+  test:
+    name: "Test (Node: ${{matrix.node-version}})"
+    runs-on: ubuntu-latest
+    timeout-minutes: 20
+    strategy:
+      fail-fast: false
+      matrix:
+        node-version:
+        - 18
+        - 20
+        - 22
+    env:
+      NGROK_API_KEY: dummy-api-key # The tests crash if NGROK_API_KEY is not set
+    steps:
+    - uses: actions/checkout@v4
+    - uses: actions/setup-node@v4
+      with:
+        node-version: ${{ matrix.node-version }}
+        cache: 'npm'
+    - run: npm ci
+    - run: npm run build
+    - run: npm run test