update node versions for github action

Author: tudvari

.github/workflows/nodejs.yml

@@ -9,7 +9,7 @@ jobs:
 
     strategy:
       matrix:
-        node-version: [18.x, 19.x, 20.x]
+        node-version: [18.x, 20.x, 21.x]
 
     steps:
     - uses: actions/checkout@v3