Customer feedback | az ml online-endpoint | missing auth_mode `aad_token` in allowed values

### Describe the bug

This GitHub issue is being moved from Azure DevOps work item [343592](https://dev.azure.com/msft-skilling/Content/_workitems/edit/343592).
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### Engineering request
Please confirm that `aad_token` is an allowed value for the `--auth-mode` parameter as stated in conceptual article H2 [Create an endpoint](https://learn.microsoft.com/en-us/azure/machine-learning/how-to-authenticate-online-endpoint?view=azureml-api-2&tabs=azure-cli#create-an-endpoint). If so, please add this allowed value to the parameter `short-summary`.

### Screen print

### Customer feedback

**Repo:**

azure-docs-cli

**Title:**
az ml online-endpoint | Microsoft Learn

**Verbatim:**
According to https://learn.microsoft.com/en-us/azure/machine-learning/how-to-authenticate-online-endpoint?view=azureml-api-2&tabs=azure-cli#create-an-endpoint you now support aad_token as auth-mode, which is very great news but missing from these docs. Is it GA?

**Verbatim Id:**
f9af13cd-9d72-ef11-a670-000d3a5a65fa

**Triaged By:**
dbradish@microsoft.com

**Triaged Comment:**
This is an actionable work item as it indicates missing information in our autogenerated reference content.

**Live URL:**
https://learn.microsoft.com/en-us/cli/azure/ml/online-endpoint

**GitHub URL:**
https://github.com/MicrosoftDocs/azure-docs-cli/blob/live/2018-03-01-hybrid/docs-ref-autogen/ml/online-endpoint.yml

**UUF Triage App Feedback URL:**
https://aka.ms/UUFTriageApp?pageviewid=4b2590ad-7837-3e7a-a9a0-9855764549bd

### Related command

az ml online-endpoint create

### Errors

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### Issue script & Debug output

.

### Expected behavior

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### Environment Summary

Azure CLI 2.66.0

### Additional context

_No response_