Data modeling add to GitHub registry - fix (#215)

* add github registry config, action workflow

* Update CHANGELOG.md

* update action

* Update github-registry-data-modeling.yml

Author: a-s-g93

.github/workflows/github-registry-data-modeling.yml

@@ -12,7 +12,8 @@ jobs:
     permissions:
       id-token: write  # For OIDC
       contents: read
-
+      
+    steps:
       # MCP publishing (works for all package types)
       - name: Download MCP Publisher
         run: |