Bump ray from 2.51.1 to 2.52.0 in /sdks/python/container/ml/py312

Bumps [ray](https://github.com/ray-project/ray) from 2.51.1 to 2.52.0.
- [Release notes](https://github.com/ray-project/ray/releases)
- [Commits](ray-project/ray@ray-2.51.1...ray-2.52.0)

---
updated-dependencies:
- dependency-name: ray
  dependency-version: 2.52.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

sdks/python/container/ml/py312/gpu_image_requirements.txt

@@ -236,7 +236,7 @@ python-tds==1.17.1
 pytz==2025.2
 PyYAML==6.0.3
 pyzmq==27.1.0
-ray==2.51.1
+ray==2.52.0
 redis==5.3.1
 referencing==0.37.0
 regex==2025.10.23