Is your feature request related to a problem? Please describe.
Currently azure cli does not provide some of the application insight endpoint for different cloud regions. For example, ingestion endpoint for application insight in us government region is
https://dc.applicationinsights.us/v2/track

Describe the solution you'd like
Azure cli team maintain application insight endpoint mapping and provide the information in az cloud show.
The current endpoint list for application insight can be found here:
https://docs.microsoft.com/en-us/azure/azure-monitor/app/custom-endpoints

Describe alternatives you've considered
We currently maintain a mapping from cloud region to application insight ingestion endpoint in our application.

Additional context
As part of effort to automate azureml service deployment in new region, we would like to be able to query the correct application insight endpoint given cloud region so that correct endpoint can be consumed at build time.