Update Set-SPOSite.md with anonymous link type overrides

[SeanLGLivingston]

Added parameters for FileAnonymousLinkType and FolderAnonymousLinkType overrides to Set-SPOSite documentation. Included examples for their usage and descriptions of valid values.

[learn-build-service-prod]

PoliCheck Scan Report

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[learn-build-service-prod]

Learn Build status updates of commit d55e2d9:

✅ Validation status: passed

File	Status	Preview URL	Details
sharepoint/sharepoint-ps/Microsoft.Online.SharePoint.PowerShell/Set-SPOSite.md	✅Succeeded	View (sharepoint-ps)

For more details, please refer to the build report.

[SeanLGLivingston]

@microsoft-github-policy-service agree company="Microsoft"

[github-actions]

sachin-lalwani
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