Update non-JSON serialization types

[gewarren]

Fixes dotnet/docs#30850.

[ghost]

I couldn't figure out the best area label to add to this PR. If you have write-permissions please help me learn by adding exactly one area label.

[opbld32]

Learn Build status updates of commit ea03c52:

✅ Validation status: passed

File	Status	Preview URL	Details
xml/System.Runtime.Serialization/ISerializable.xml	✅Succeeded	View
xml/System/NonSerializedAttribute.xml	✅Succeeded	View
xml/System/SerializableAttribute.xml	✅Succeeded	View
xml/System/Type.xml	✅Succeeded	View

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