Fix elevenlabs voice settings breaking

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11labs API requires style float and use_speaker_boost boolean. defaulting to None gets translated to JSON as null type. this sets them to their default values noted in the API here: https://api.elevenlabs.io/v1/voices/settings/default

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Latest commit: f3aceab

The changes in this PR will be included in the next version bump.

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livekit-plugins-elevenlabs	Patch

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just noticed that this does break our API, as the default for speaker boosting is now True and it used to be False; do we keep it as it was?

[theomonnom]

Are the defaults safe when listing the voices using this fnc?
async def list_voices(self) -> List[Voice]:

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Are the defaults safe when listing the voices using this fnc?
async def list_voices(self) -> List[Voice]:

that function sets settings=None, which changes the behaviour of the stock voices now, yes

[theomonnom]

Looking at their docs, they seem to explicitly set it on the examples? https://github.com/elevenlabs/elevenlabs-python/blob/a75c7e7e0b2aa8d04225ca34e2e387ccd0ba13ac/README.md#%EF%B8%8F-voices

On their 11labs python-client, I see that they also default these stuff to None

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new method just strips the Nones from the object before passing it to the JSON encoder, and doesn't mess with our defaults, so everything should be the same.

Looking at their docs, they seem to explicitly set it on the examples? elevenlabs/elevenlabs-python@a75c7e7/README.md#%EF%B8%8F-voices

On their 11labs python-client, I see that they also default these stuff to None

i don't think elevenlabs' Python client even supports professional or cloned voices, they errored as well.