Merge to live - 17.12 updates

[nkolev92]

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[learn-build-service-prod]

Learn Build status updates of commit 2540fb2:

💡 Validation status: suggestions

File	Status	Preview URL	Details
docs/release-notes/NuGet-6.12.md	💡Suggestion	View	Details
.openpublishing.build.ps1	✅Succeeded	n/a (file deleted or renamed)
docs/api/package-base-address-resource.md	✅Succeeded	View
docs/reference/errors-and-warnings/NU1901-NU1904.md	✅Succeeded	View

docs/release-notes/NuGet-6.12.md

• Line 2, Column 1: [Suggestion: ms-date-missing - See documentation] Missing required attribute: 'ms.date'.

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