Add changelog entries from botocore

.changes/next-release/api-change-amplify-600.json

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+{
+  "type": "api-change",
+  "category": "``amplify``",
+  "description": "[``botocore``] Add ComputeRoleArn to CreateApp, UpdateApp, CreateBranch, and UpdateBranch, allowing caller to specify a role to be assumed by Amplify Hosting for server-side rendered applications."
+}

.changes/next-release/api-change-dms-30055.json

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+{
+  "type": "api-change",
+  "category": "``dms``",
+  "description": "[``botocore``] Support replicationConfigArn in DMS DescribeApplicableIndividualAssessments API."
+}

.changes/next-release/api-change-timestreaminfluxdb-76655.json

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+{
+  "type": "api-change",
+  "category": "``timestream-influxdb``",
+  "description": "[``botocore``] This release introduces APIs to manage DbClusters and adds support for read replicas"
+}

.changes/next-release/enhancement-Parsers-84233.json

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+{
+  "type": "enhancement",
+  "category": "Parsers",
+  "description": "[``botocore``] Minor Parser updates to support the new smithy-generated protocol tests. See `boto/botocore#3247 <https://github.com/boto/botocore/pull/3247>`__ for more details."
+}