chore(deps): update numpy requirement in /backend/python/transformers

Updates the requirements on [numpy](https://github.com/numpy/numpy) to permit the latest version.
- [Release notes](https://github.com/numpy/numpy/releases)
- [Changelog](https://github.com/numpy/numpy/blob/main/doc/RELEASE_WALKTHROUGH.rst)
- [Commits](https://github.com/numpy/numpy/compare/v2.0.0...v2.5.2)

---
updated-dependencies:
- dependency-name: numpy
  dependency-version: 2.5.2
  dependency-type: direct:production
...

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

backend/python/transformers/requirements.txt

@@ -3,4 +3,4 @@ protobuf==7.35.0
 certifi
 setuptools
 scipy==1.15.1
-numpy>=2.0.0
+numpy>=2.5.2