Update turn-off-directory-synchronization.md

[frenzied-state]

Updated line 43 to reflect the actual command used in the PS script.

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

Learn Build status updates of commit 10c6961:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
microsoft-365/enterprise/turn-off-directory-synchronization.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel

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

Learn Build status updates of commit a7ae5f4:

:white_check_mark: Validation status: passed

File	Status	Preview URL	Details
microsoft-365/enterprise/turn-off-directory-synchronization.md	:white_check_mark:Succeeded

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
• Post your question in the Learn support channel