Add changelog entries from botocore

Author: aws-sdk-python-automation

.changes/next-release/api-change-eks-51580.json

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+{
+  "category": "``eks``", 
+  "type": "api-change", 
+  "description": "[``botocore``] Added updateConfig option that allows customers to control upgrade velocity in Managed Node Group."
+}

.changes/next-release/api-change-glue-9730.json

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+{
+  "category": "``glue``", 
+  "type": "api-change", 
+  "description": "[``botocore``] Add SampleSize variable to S3Target to enable s3-sampling feature through API."
+}

.changes/next-release/api-change-personalize-3261.json

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+{
+  "category": "``personalize``", 
+  "type": "api-change", 
+  "description": "[``botocore``] Update regex validation in kmsKeyArn and s3 path API parameters for AWS Personalize APIs"
+}

.changes/next-release/api-change-sagemaker-43543.json

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+{
+  "category": "``sagemaker``", 
+  "type": "api-change", 
+  "description": "[``botocore``] AWS SageMaker - Releasing new APIs related to Callback steps in model building pipelines. Adds experiment integration to model building pipelines."
+}