Set the composite action’s default node-version back to 24.x

The previous default of 24.x was there to match the Node version used elsewhere in the repo, so dropping it to 20 only adds confusion. I’ll set the composite action’s node-version default back to 24.x so every caller still gets a consistent runtime, while individual jobs remain free to override it if they need a different Node release.

Author: gnbm

.github/workflows/actions/publish-npm/action.yml

@@ -17,7 +17,7 @@ inputs:
   node-version:
     description: 'Node.js version to use when publishing.'
     required: false
-    default: '20'
+    default: '24.x'
   registry-url:
     description: 'Registry URL used for npm publish.'
     required: false