chore(deps): bump sagemaker

Bumps [sagemaker](https://github.com/aws/sagemaker-python-sdk) from 2.237.3 to 2.256.0.
- [Release notes](https://github.com/aws/sagemaker-python-sdk/releases)
- [Changelog](https://github.com/aws/sagemaker-python-sdk/blob/v2.256.0/CHANGELOG.md)
- [Commits](aws/sagemaker-python-sdk@v2.237.3...v2.256.0)

---
updated-dependencies:
- dependency-name: sagemaker
  dependency-version: 2.256.0
  dependency-type: direct:production
...

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

Author: dependabot[bot]

modules/sagemaker/sagemaker-model-monitoring/sagemaker_model_monitoring/lambda/requirements.txt

@@ -2,4 +2,4 @@ pydantic==2.10.3
 pydantic-core
 # Use numpy version with pre-built wheels for Python 3.13
 numpy>=1.26.0,<2.0
-sagemaker==2.237.3
+sagemaker==2.256.0