add node 21, as an example

Author: msimerson

.github/workflows/main.yml

@@ -16,9 +16,9 @@ jobs:
       fail-fast: false
       matrix:
         os: [ ubuntu-latest ]
-        node: ${{ fromJson(needs.get-lts.outputs.active) }}
-        # include:
-        #   - node: 22
+        node:
+          - ${{ fromJson(needs.get-lts.outputs.active) }}
+          - 22
     steps:
       - name: Checkout
         uses: actions/checkout@v4