automatically test LTS versions

.github/workflows/ci-test.yml

@@ -7,23 +7,32 @@ env:
 
 jobs:
   ci-test:
+    needs: [get-lts]
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
         os: [ ubuntu-latest, windows-latest ]
-        node-version: [12, 14, 16, 18, 20 ]
+        node-version: ${{ fromJson(needs.get-lts.outputs.active) }}
       fail-fast: false
 
     steps:
-    - uses: actions/checkout@v3
+    - uses: actions/checkout@v4
       with:
         fetch-depth: 1
 
-    - uses: actions/setup-node@v3
+    - uses: actions/setup-node@v4
       name: Use Node.js ${{ matrix.node-version }}
       with:
         node-version: ${{ matrix.node-version }}
 
     - run: npm install
     - run: npm run test
 
+ get-lts:
+    runs-on: ubuntu-latest
+    steps:
+      - id: get
+        uses: msimerson/node-lts-versions@v1
+    outputs:
+      active: ${{ steps.get.outputs.active }}
+      lts: ${{ steps.get.outputs.lts }}