Update syncfolderhierarchy.md

[David-Barrett-MS]

Added note that this call is not supported against group mailboxes or public folders.

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

Learn Build status updates of commit 6c78111:

:bulb: Validation status: suggestions

File	Status	Preview URL	Details
docs/web-service-reference/syncfolderhierarchy.md	:bulb:Suggestion	View	Details

docs/web-service-reference/syncfolderhierarchy.md

• Line 10, Column 1: [Suggestion: ms-technology-disallowed - See documentation] ms.technology is deprecated and can't be used for all content.

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