Adding description in getOrganizationApiKey (#23602)

Author: poshett

specification/elastic/resource-manager/Microsoft.Elastic/preview/2023-02-01-preview/elastic.json

@@ -1423,6 +1423,7 @@
           "ApiKey"
         ],
         "summary": "Fetch User API Key from internal database, if it was generated and stored while creating the Elasticsearch Organization.",
+        "description": "Fetch User API Key from internal database, if it was generated and stored while creating the Elasticsearch Organization.",
         "operationId": "Organizations_GetApiKey",
         "consumes": [
           "application/json"