Add changelog entries from botocore

Author: aws-sdk-python-automation

.changes/next-release/api-change-comprehend-25128.json

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+{
+  "type": "api-change",
+  "category": "``comprehend``",
+  "description": "[``botocore``] Amazon Comprehend now supports versioning of custom models, improved training with ONE_DOC_PER_FILE text documents for custom entity recognition, ability to provide specific test sets during training, and live migration to new model endpoints."
+}

.changes/next-release/api-change-ec2-86223.json

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+{
+  "type": "api-change",
+  "category": "``ec2``",
+  "description": "[``botocore``] This update adds support for downloading configuration templates using new APIs (GetVpnConnectionDeviceTypes and GetVpnConnectionDeviceSampleConfiguration) and Internet Key Exchange version 2 (IKEv2) parameters for many popular CGW devices."
+}

.changes/next-release/api-change-ecr-23669.json

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+{
+  "type": "api-change",
+  "category": "``ecr``",
+  "description": "[``botocore``] This release adds additional support for repository replication"
+}

.changes/next-release/api-change-iot-58917.json

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+{
+  "type": "api-change",
+  "category": "``iot``",
+  "description": "[``botocore``] This release adds support for verifying, viewing and filtering AWS IoT Device Defender detect violations with four verification states."
+}