Update site-post-permissions.md

[mmascolino]

the permissions table for this graph api item was not correct/complete.

Important

Required for API changes:

• [] Link to API.md file: ADD LINK HERE
• [] Link to PR for public-facing schema changes (schema-Prod-beta/v1.0.csdl): ADD LINK HERE
• [] OPTIONAL: Attach the documentation plan generated for AI-assisted docs authoring and validation to help speed up content review.

---

Add other supporting information, such as a description of the PR changes:

ADD INFORMATION HERE

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Important

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[learn-build-service-prod]

Learn Build status updates of commit 9c60e33:

✅ Validation status: passed

File	Status	Preview URL	Details
api-reference/v1.0/api/site-post-permissions.md	✅Succeeded

For more details, please refer to the build report.

[Danipocket]

@mmascolino, are you a MS FTE? If so, please use the private repo and coordinate with the permissions team.

[mmascolino]

@Danipocket - i am not. just a concerned citizen.

[Danipocket]

@Danipocket - i am not. just a concerned citizen.

:P Let me keep this PR open and find someone from this workload to validate this change. I’m sure you’re correct. Thanks again! @mmascolino