Bump transformers from 4.36.0 to 4.38.1 (#2179)

Summary:
A previous transformers update to torchbench (pytorch/pytorch#117073) resulted in some failures on the TorchInductor benchmarks (pytorch/pytorch#117280).

A fix was made to transformers (huggingface/transformers#27871), which was released in transformers version 4.38.0, so I would like to bump the version in torchbench so that we can fix the issue with the Inductor benchmarks.

Please let me know if there are any procedures I should go through for this update!

Pull Request resolved: #2179

Reviewed By: aaronenyeshi

Differential Revision: D54212153

Pulled By: angelayi

fbshipit-source-id: ceecea744e49358aa3f3437fcaad9683e989f25b

requirements.txt

@@ -11,7 +11,7 @@ requests
 tabulate
 git+https://github.com/huggingface/pytorch-image-models.git@730b907
 # this version of transformers is required as per this page https://huggingface.co/mistralai/Mistral-7B-Instruct-v0.1
-transformers==4.36.0
+transformers==4.38.1
 MonkeyType
 psutil
 pyyaml