[docs-scanner] Stale Microsoft documentation link for Azure Pipelines

[docker-agent]

File: content/manuals/docker-hub/usage/pulls.md

Issue

The Azure Pipelines link in the third-party platforms section uses Microsoft's old documentation domain and an outdated anchor:

• Azure Pipelines

This link redirects to Microsoft's new learn.microsoft.com domain, and the anchor #sep-docreg no longer exists on the target page. The redirect drops the anchor, potentially leaving users on the wrong section of the page.

Suggested fix

Update the link to use Microsoft's current documentation domain. The page has moved to:

- [Azure Pipelines](https://learn.microsoft.com/en-us/azure/devops/pipelines/library/service-endpoints?view=azure-devops&tabs=yaml)

Note: The specific Docker Registry section anchor may need to be identified on the current page if a more specific link is desired.

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Found by nightly documentation freshness scanner