Update nodejs.yml

.github/workflows/nodejs.yml

@@ -7,7 +7,7 @@ jobs:
     runs-on: ubuntu-latest
     strategy:
       matrix:
-        node: [ 18, 20 ]
+        node: [ 20, 21 ]
     name: Use Node.js ${{ matrix.node }}
     steps:
       - uses: actions/checkout@v4