build(deps): update transformers requirement from ~=4.47.1 to ~=4.48.0

Updates the requirements on [transformers](https://github.com/huggingface/transformers) to permit the latest version.
- [Release notes](https://github.com/huggingface/transformers/releases)
- [Commits](huggingface/transformers@v4.47.1...v4.48.0)

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

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

requirements.txt

@@ -8,6 +8,6 @@ torch~=2.5.1
 sentencepiece~=0.2.0
 setuptools~=75.6.0
 huggingface-hub~=0.27.0
-transformers~=4.47.1
+transformers~=4.48.0
 fastapi~=0.115.6
 uvicorn~=0.34.0