Add revision to push_to_hub

[philschmid]

This PR adds the revision key to the push_to_hub method to push models, to specific revision, this is helpful ,e.g. to version compiled checkpoints, e.g. 2.15.0 revision.

Also removes/fixes fairscale change huggingface/transformers#25702

[HuggingFaceDocBuilderDev]

The docs for this PR live here. All of your documentation changes will be reflected on that endpoint.

[dacorvo]

Thanks for this pull-request.
Regarding the addition of revision, I think it was omitted because the original method in optimum does not have it.
For consistency, it would be nice to add it also here:

optimum-neuron/optimum/neuron/modeling_decoder.py

Line 257 in 1d2a95e

def push_to_hub(

.

[philschmid]

@dacorvo added it for the decoder as well.