Bump flask from 1.1.1 to 2.2.5 in /test/sagemaker_tests/pytorch/training

Bumps [flask](https://github.com/pallets/flask) from 1.1.1 to 2.2.5.
- [Release notes](https://github.com/pallets/flask/releases)
- [Changelog](https://github.com/pallets/flask/blob/main/CHANGES.rst)
- [Commits](pallets/flask@1.1.1...2.2.5)

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

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

Author: dependabot[bot]

test/sagemaker_tests/pytorch/training/requirements.txt

@@ -6,7 +6,7 @@ sagemaker==2.152.0
 coverage==4.5.3
 docker-compose
 flake8==3.7.7
-Flask==1.1.1
+Flask==2.2.5
 mock==2.0.0
 pytest
 pytest-cov