Bump transformers

Bumps [transformers](https://github.com/huggingface/transformers) from 4.33.2 to 4.38.0.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](huggingface/transformers@v4.33.2...v4.38.0)

---
updated-dependencies:
- dependency-name: transformers
  dependency-type: direct:production
...

Signed-off-by: dependabot[bot] <[email protected]>

src/brevitas_examples/stable_diffusion/mlperf_evaluation/requirements.txt

@@ -7,4 +7,4 @@ pycocotools==2.0.7
 scipy==1.9.1
 torchmetrics[image]==1.2.0
 tqdm
-transformers==4.33.2
+transformers==4.38.0