Auth token not used when loading pretrained model. #278
Description
The below error is given when loading an uncached private model with SetFitModel.from_pretrained() using the function's token parameter.
RepositoryNotFoundError: 401 Client Error: Repository not found for url:
It appears that the token was not being passed to the SentenceTransformer in SetFitModel's _from_pretrained method in modeling.py. I've created a PR that should fix this.