Add changelog entries from botocore

.changes/next-release/api-change-batch-13059.json

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+{
+  "type": "api-change",
+  "category": "``batch``",
+  "description": "[``botocore``] This release adds support for price capacity optimized allocation strategy for Spot Instances."
+}

.changes/next-release/api-change-dms-93378.json

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+{
+  "type": "api-change",
+  "category": "``dms``",
+  "description": "[``botocore``] Adding new API describe-engine-versions which provides information about the lifecycle of a replication instance's version."
+}

.changes/next-release/api-change-internetmonitor-54636.json

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+{
+  "type": "api-change",
+  "category": "``internetmonitor``",
+  "description": "[``botocore``] This release adds a new feature for Amazon CloudWatch Internet Monitor that enables customers to set custom thresholds, for performance and availability drops, for impact limited to a single city-network to trigger creation of a health event."
+}

.changes/next-release/api-change-medialive-83243.json

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+{
+  "type": "api-change",
+  "category": "``medialive``",
+  "description": "[``botocore``] AWS Elemental Link devices now report their Availability Zone. Link devices now support the ability to change their Availability Zone."
+}

.changes/next-release/api-change-polly-10775.json

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+{
+  "type": "api-change",
+  "category": "``polly``",
+  "description": "[``botocore``] Amazon Polly adds new French Belgian voice - Isabelle. Isabelle is available as Neural voice only."
+}

.changes/next-release/api-change-rds-27229.json

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+{
+  "type": "api-change",
+  "category": "``rds``",
+  "description": "[``botocore``] Added support for deleted clusters PiTR."
+}

.changes/next-release/api-change-sagemaker-28665.json

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+{
+  "type": "api-change",
+  "category": "``sagemaker``",
+  "description": "[``botocore``] Add Stairs TrafficPattern and FlatInvocations to RecommendationJobStoppingConditions"
+}