ci: use recent node versions

Author: tpluscode

.github/workflows/test.yml

@@ -5,10 +5,15 @@ on: [push, pull_request]
 jobs:
   build:
     runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node-version: [18, 20, "lts/*"]
 
     steps:
       - uses: actions/checkout@v4
       - uses: actions/setup-node@v4
+        with:
+          node-version: ${{ matrix.node-version }}
       - run: npm ci
       - run: npm test
       - run: npm run lint