azure-communication doesn't support managed identity authentication

[davidt99]

When using the communication services to send emails using the python SDK, it's not possible to use the managed identity authentication. The type-hinting specifies either AzureKeyCredential or TokenCredential, both of which are "password-based", which we want to avoid, for obvious reasons, especially when Azure is pushing for managed identity authentication on all services.

[github-actions[bot]]

Thanks for the feedback! We are routing this to the appropriate team for follow-up. cc @yogeshmo.

[davidt99]

Any update @yogeshmo? I just want to understand if this is actually implemented ot not