Bump transformers from 4.41.2 to 4.52.1 in /python-rag-chatbot

Bumps [transformers](https://github.com/huggingface/transformers) from 4.41.2 to 4.52.1.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](huggingface/transformers@v4.41.2...v4.52.1)

---
updated-dependencies:
- dependency-name: transformers
  dependency-version: 4.52.1
  dependency-type: direct:production
...

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

Author: dependabot[bot]

python-rag-chatbot/requirements.txt

@@ -228,7 +228,7 @@ toolz==0.12.0
 torch==2.7.0
 torchvision==0.17.2
 traitlets==5.11.2
-transformers==4.41.2
+transformers==4.52.1
 trubrics==1.6.2
 typer==0.9.0
 types-python-dateutil==2.8.19.14