[enhancement]: Add support for scaled fp8 T5 encoder.

### Is there an existing issue for this?

- [X] I have searched the existing issues

### Contact Details

mbac_ (discord)

### What should this feature add?

Comfyanonymous released a scaled version of their fp8 Flux dev model; supposedly, it should be more precise than the non-scaled version. The T5 scaled encoder should accompany this model:

https://huggingface.co/comfyanonymous/flux_text_encoders

### Alternatives

_No response_

### Additional Content

_No response_