Update azure-ad-authentication-sql-server-overview.md

[mizuhokitao]

Maintenance Plan does not support Entra ID Authentication. If a user logs into SQL Server with Entra ID Authentication in SSMS and then starts the maintenance plan, an error will occur.

[prmerger-automator]

@mizuhokitao : Thanks for your contribution! The author(s) and reviewer(s) have been notified to review your proposed change.

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[v-regandowner]

@PratimDasgupta - Can you review the proposed changes?

IMPORTANT: When the changes are ready for publication, adding a #sign-off comment is the best way to signal that the PR is ready for the review team to merge.

#label:"aq-pr-triaged"
@MicrosoftDocs/public-repo-pr-review-team

[learn-build-service-prod]

Learn Build status updates of commit 759d91e:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/relational-databases/security/authentication-access/azure-ad-authentication-sql-server-overview.md	✅Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

[rothja]

@VanMSFT Please take a look as well. #assign:vanmsft

[v-dirichards]

@VanMSFT

Can you review this PR and determine whether it needs to be closed or merged?

IMPORTANT: When the changes are ready for publication, add a #sign-off comment to signal that the PR is ready for the review team to merge. If the changes no longer apply, add an explanation and a #please-close comment to close the PR.

@MicrosoftDocs/public-repo-pr-review-team

[VanMSFT]

Hi @mizuhokitao - Thanks for submitting this. Although it's true that maintenance plans don't support Microsoft Entra auth, I don't think it's necessary to list it here. It's not the norm to list what isn't supported in our docs. For what's supported for maintenance plans, please refer https://learn.microsoft.com/sql/relational-databases/maintenance-plans/maintenance-plans#benefits-of-maintenance-plans.

I'll close this PR as the text is not needed.