Unsupported SMTP Azure communication service username format

# Bug report - ✅ I confirm this is a bug with Supabase, not with my own application. - ✅ I confirm I have searched the [Docs](https://docs.supabase.com), GitHub [Discussions](https://github.com/supabase/supabase/discussions), and [Discord](https://discord.supabase.com). ## Describe the bug SMTP gotrue authentication for sending e-mails does not support the user format required by Azure communication service. The required format is: Dot-delimited Format: `username: <Azure Communication Services Resource name>.<Microsoft Entra Application ID>.<Microsoft Entra Tenant ID>` Pipe-delimited Format: `username: <Azure Communication Services Resource name>|<Microsoft Entra Application ID>|<Microsoft Entra Tenant ID>` Documentation: https://learn.microsoft.com/en-us/azure/communication-services/quickstarts/email/send-email-smtp/smtp-authentication#smtp-authentication-username ## To Reproduce Steps to reproduce the behavior, please provide code snippets or a repository: Set your Azure communication service SMTP credentials, when sending the email from gotrue you may see the incorrect email format error. SMTP Azure communication service username is not an email but a dot-delimited string or pipeline. ## Expected behavior Supporting the format required by Azure communication service. ## System information - Supabase self hosted