added os

.github/workflows/09-node.js-matrix.yml

@@ -23,11 +23,11 @@ defaults:
 jobs:
   build-node:
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.os-version }}
     strategy:
       matrix:
         node-version: [12.x, 14.x, 16.x]
-        # See supported Node.js release schedule at https://nodejs.org/en/about/releases/
+        os-version: [ubuntu-latest windows-latest]
 
     steps:
     - uses: actions/checkout@v3