Update changelog based on model updates

Author: aws-sdk-python-automation

.changes/next-release/api-change-controltower-1653.json

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+{
+  "type": "api-change",
+  "category": "``controltower``",
+  "description": "Added Parent Identifier support to ListEnabledControls and GetEnabledControl API. Implemented RemediationType support for Landing Zone operations: CreateLandingZone, UpdateLandingZone and GetLandingZone APIs"
+}

.changes/next-release/api-change-ec2-96233.json

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+{
+  "type": "api-change",
+  "category": "``ec2``",
+  "description": "Adds PrivateDnsPreference and PrivateDnsSpecifiedDomains to control private DNS resolution for resource and service network VPC endpoints and IpamScopeExternalAuthorityConfiguration to integrate Amazon VPC IPAM with a third-party IPAM service"
+}

.changes/next-release/api-change-kms-97700.json

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+{
+  "type": "api-change",
+  "category": "``kms``",
+  "description": "Added support for new ECC_NIST_EDWARDS25519 AWS KMS key spec"
+}

.changes/next-release/api-change-opensearch-83822.json

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+{
+  "type": "api-change",
+  "category": "``opensearch``",
+  "description": "This release introduces the Default Application feature, allowing users to set, change, or unset a preferred OpenSearch UI application on a per-region basis for a streamlined and consistent user experience."
+}

.changes/next-release/api-change-vpclattice-19189.json

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+{
+  "type": "api-change",
+  "category": "``vpc-lattice``",
+  "description": "Amazon VPC Lattice now supports custom domain name for resource configurations"
+}