add a github actions workflow

Author: williamstein

.github/workflows/test.yml

@@ -0,0 +1,46 @@
+name: Build package and run tests
+
+# newer commits in the same PR abort running ones for the same workflow
+concurrency:
+  group: ${{ github.workflow }}-${{ github.head_ref || github.run_id }}
+  cancel-in-progress: true
+
+on:
+  push:
+    branches:
+      - main
+  pull_request:
+    branches:
+      - main
+  workflow_dispatch:
+    inputs:
+      debug_enabled:
+        type: boolean
+        description: "Run the build with tmate debugging enabled (https://github.com/marketplace/actions/debugging-with-tmate)"
+        required: false
+        default: false
+
+jobs:
+  build:
+    runs-on: ubuntu-latest
+
+    strategy:
+      matrix:
+        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+        node-version:
+          - "18"
+          - "20"
+          - "22"
+          - "24"
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Node.js ${{ matrix.node-version }}
+        uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
+      - run: npm install -g pnpm
+      - run: pnpm install
+      - run: pnpm build
+      - run: pnpm test