Update permission references and add a note about additional required permissions

[rufer7]

This pull request includes changes to the azure-sql/database/authentication-azure-ad-user-assigned-managed-identity.md file to update permission references and add a note about additional required permissions for creating a contained database user for a Microsoft Entra group.

Permission reference updates:

• Updated the URLs for User.Read.All, GroupMember.Read.All, and Application.Read.All to correct paths.

Additional permissions note:

• Added a note indicating that the Group.Read.All permission is also required for the creation of a contained database user for a Microsoft Entra group.

[prmerger-automator[bot]]

@rufer7 : Thanks for your contribution! The author(s) have been notified to review your proposed change.

[learn-build-service-prod[bot]]

Learn Build status updates of commit e1c2b07:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
azure-sql/database/authentication-azure-ad-user-assigned-managed-identity.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

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[v-dirichards]

@VanMSFT

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[bot]]

Learn Build status updates of commit ee91508:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
azure-sql/database/authentication-azure-ad-user-assigned-managed-identity.md	:white_check_mark: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

[VanMSFT]

Thanks, @rufer7 - I'm checking on this.

[v-dirichards]

@vanmsft Can you review this old 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