Add note about NAOT

[AaronRobinsonMSFT]

Summary

Updating doc based on recent changes.

See dotnet/runtime#90120

/cc @jkotas @elinor-fung @agocke @MichalStrehovsky

[AaronRobinsonMSFT]

/cc @gewarren

[learn-build-service-prod]

Learn Build status updates of commit 39916de:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Runtime.InteropServices/DllImportSearchPath.xml	✅Succeeded	View

For more details, please refer to the build report.

For any questions, please:

• Try searching the learn.microsoft.com contributor guides
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[gewarren]

I updated the last sentence too - not sure if it's accurate so please check.

[jkotas]

Thanks!

[learn-build-service-prod]

Learn Build status updates of commit ca29855:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Runtime.InteropServices/DllImportSearchPath.xml	✅Succeeded	View

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]

Learn Build status updates of commit b819851:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Runtime.InteropServices/DllImportSearchPath.xml	✅Succeeded	View

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