LTX-2.3 Support

[rootonchair]

Model/Pipeline/Scheduler description

New model LTX-2.3 models have been released recently. Maybe weight conversion is needed for it

HF repo: https://huggingface.co/Lightricks/LTX-2.3

I could support on this

Open source status

• The model implementation is available.
• The model weights are available (Only relevant if addition is not a scheduler).

Provide useful links for the implementation

No response

[asomoza]

HI, there's already a PR for this model here #13217