Add redirect for airflow-configurations article

Author: poliveria

.openpublishing.redirection.json

@@ -5,6 +5,7 @@
       "redirect_url": "/azure/sentinel/datalake/sentinel-mcp-chatgpt-claude-connector",
       "redirect_document_id": false
     },
+    {
       "source_path": "articles/data-factory/airflow-configurations.md",
       "redirect_url": "/previous-versions/azure/data-factory/airflow-configurations",
       "redirect_document_id": false