Fix Concatenate Compatibility

[Satrat]

Replacing torch.concatenate calls with torch.cat, they are the same function but concatenate is an alias that doesn't exist in earlier versions of pytorch.

Before on torch 1.12.0

Traceback (most recent call last):
  File "src/sparseml/transformers/sparsification/obcq/obcq.py", line 167, in <module>
    one_shot(
  File "src/sparseml/transformers/sparsification/obcq/obcq.py", line 89, in one_shot
    dataset = TransformersDataset.load_from_registry(
  File "/home/michael/sml/lib/python3.8/site-packages/sparsezoo/utils/registry.py", line 120, in load_from_registry
    return constructor(**constructor_kwargs)
  File "/home/michael/code/sparseml/src/sparseml/transformers/data/open_platypus.py", line 68, in __init__
    self.create_dataloader(processed_data)
  File "/home/michael/code/sparseml/src/sparseml/transformers/data/base_llm.py", line 94, in create_dataloader
    tokenized_sample = self._add_end_token(tokenized_sample)
  File "/home/michael/code/sparseml/src/sparseml/transformers/data/base_llm.py", line 103, in _add_end_token
    tokenized_sample = torch.concatenate(
AttributeError: module 'torch' has no attribute 'concatenate'

After

OBCQ script runs successfully