Line Type Intelligence is documented as a `string` but it's actually an array

[stevebauman]

On the PhoneNumberInstance, there's a doc-type for $lineTypeIntelligence` that says its a string:

twilio-php/src/Twilio/Rest/Lookups/V2/PhoneNumberInstance.php

Line 37 in 7bae72d

* @property string $lineTypeIntelligence

However this is not the case. It's actually an array, as shown in the docs, and confirmed locally:

https://www.twilio.com/docs/lookup/v2-api/line-type-intelligence#code-examples-and-responses