Update search-concept-person.md with emailAddress note

[dylanstetts]

Added note about emailAddress property availability.

Important

Required for API changes:

• [] Link to API.md file: https://github.com/microsoftgraph/microsoft-graph-docs-contrib/blob/main/concepts/search-concept-person.md
• [] Link to PR for public-facing schema changes (schema-Prod-beta/v1.0.csdl): ADD LINK HERE
• [] Attach the documentation plan generated for AI-assisted docs authoring and validation to help speed up content review.

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

This is from a customer escalation: https://portal.microsofticm.com/imp/v5/incidents/details/21000000925148/summary

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Important

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[learn-build-service-prod]

Learn Build status updates of commit 5362786:

❌ Validation status: errors

Please follow instructions here which may help to resolve issue.

File	Status	Preview URL	Details
	❌Error		Details

• Line 0, Column 0: [Error: download-failed] Download failed for file 'https://docs.microsoft.com/api/resources/sandbox/verify'. Try closing and reopening the PR. If you get this Error again, file an issue.
• Line 0, Column 0: [Error: download-failed] Download failed for file 'https://docs.microsoft.com/api/resources/sandbox/verify'. Try closing and reopening the PR. If you get this Error again, file an issue.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[learn-build-service-prod]

Learn Build status updates of commit 5362786:

❌ Validation status: errors

Please follow instructions here which may help to resolve issue.

File	Status	Preview URL	Details
	❌Error		Details

• Line 0, Column 0: [Error: download-failed] Download failed for file 'https://docs.microsoft.com/api/resources/sandbox/verify'. Try closing and reopening the PR. If you get this Error again, file an issue.
• Line 0, Column 0: [Error: download-failed] Download failed for file 'https://docs.microsoft.com/api/resources/sandbox/verify'. Try closing and reopening the PR. If you get this Error again, file an issue.

For more details, please refer to the build report.

Note: Your PR may contain errors or warnings or suggestions unrelated to the files you changed. This happens when external dependencies like GitHub alias, Microsoft alias, cross repo links are updated. Please use these instructions to resolve them.

[learn-build-service-prod]

Learn Build status updates of commit 5362786:

✅ Validation status: passed

File	Status	Preview URL	Details
concepts/search-concept-person.md	✅Succeeded

For more details, please refer to the build report.