build(deps): update safetensors requirement from ~=0.4.1 to ~=0.4.2

Updates the requirements on [safetensors](https://github.com/huggingface/safetensors) to permit the latest version.
- [Release notes](https://github.com/huggingface/safetensors/releases)
- [Changelog](https://github.com/huggingface/safetensors/blob/main/RELEASE.md)
- [Commits](huggingface/safetensors@v0.4.1...v0.4.2)

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

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

requirements.txt

@@ -8,7 +8,7 @@ flask>=2.2.1
 huggingface-hub~=0.17.3
 jinja2>=3.1.2
 pytest>=6.2.5
-safetensors~=0.4.1
+safetensors~=0.4.2
 scipy>=1.6.3
 torch>=1.12.1
 transformers[sentencepiece]~=4.35.2