I have a JSON with dynamic data and not sure how I can retrieve data with JQ.
My JSON is:

```json
{
   "RuntimeSources":{
      "env-name-DYNAMIC":{
         "the-dynamic-value-i-need-to-get":{
            "url":""
         }
      }
   },
   "DeploymentId":147,
   "Serial":158
}

```

'env-name-DYNAMIC' is dynamic and 'the-dynamic-value-i-need-to-get' is the same.
The json structure is always the same. How can I get 'the-dynamic-value-i-need-to-get'? Also I may need to retrieve 'env-name-DYNAMIC'