Bump flask in /test/sagemaker_tests/autogluon/training (#5)

Automatic merge of Dependabot PR

Author: dependabot[bot]

test/sagemaker_tests/autogluon/training/requirements.txt

@@ -3,7 +3,7 @@ protobuf>=3.20,<3.21
 sagemaker>=2.187,<3
 coverage
 flake8==3.7.7
-Flask==1.1.1
+Flask==3.1.3
 mock
 pytest
 pytest-cov