chore(deps): bump transformers in /site/utils/embeddings

Bumps [transformers](https://github.com/huggingface/transformers) from 4.36.0 to 4.38.0.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](huggingface/transformers@v4.36.0...v4.38.0)

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

Signed-off-by: dependabot[bot] <support@github.com>

site/utils/embeddings/requirements.txt

@@ -31,6 +31,6 @@ tokenizers==0.13.3
 torch==2.0.1
 torchvision==0.15.2
 tqdm==4.66.1
-transformers==4.36.0
+transformers==4.38.0
 typing_extensions==4.8.0
 urllib3==2.0.7