Update CREDENTIAL documentation for Fabric COPY INTO

[st-jan]

Clarified authentication requirements for storage accounts without public network access.
We learned through interactions with Microsoft that Shared Access Signatures and Storage Account Keys cannot be used in this instance.

[prmerger-automator]

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

[v-dirichards]

refreshing the build

[Copilot]

Pull Request Overview

This PR updates the COPY INTO documentation to clarify authentication requirements for Azure storage accounts that have public network access disabled. The update informs users that Shared Access Signatures and Storage Account Keys are not supported in this scenario, and that EntraID authentication is required instead.

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[v-dirichards]

@WilliamDAssafMSFT

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 0473e86:

✅ Validation status: passed

File	Status	Preview URL	Details
docs/t-sql/statements/copy-into-transact-sql.md	✅Succeeded

For more details, please refer to the build report.

[WilliamDAssafMSFT]

Thanks @st-jan for contacting Microsoft with a contribution to our product documentation. If you can provide any more non-person, non-identifying details about your environment and the products used, that would be helpful. Requires some confirmation on our side.

It could take from a few business days to a few weeks to confirm your change internally. We'll contact you if we need further information, and you'll receive an email message each time we "@mention" you in a comment.

By opening a pull request, you're helping the authors add your approved change directly to the documentation. If the article is updated with your commit, GitHub will list you as an article contributor.

Thanks again for this feedback. Your suggestions help improve our documentation.