Update changelog for sagemaker-core 2.5.1 #370

Job	Run time
collab-check	3s
wait-for-approval	4s
detect-changes	19s
integ-tests (sagemaker-serve)	32m 4s
unit-tests (sagemaker-serve)	44m 12s
codestyle-doc-tests (sagemaker-mlops)	6m 55s
unit-tests (sagemaker-train)	29m 56s
integ-tests (sagemaker-mlops)	32m 25s
codestyle-doc-tests (sagemaker-serve)	9m 3s
codestyle-doc-tests (sagemaker-core)	13m 33s
unit-tests (sagemaker-core)	1h 2m 25s
unit-tests (sagemaker-mlops)	31m 7s
codestyle-doc-tests (sagemaker-train)	8m 28s
integ-tests (sagemaker-core)	24m 18s
integ-tests (sagemaker-train)	1h 12m 26s
	6h 7m 18s

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