Add changelog entries from botocore

.changes/next-release/api-change-appflow-37356.json

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+{
+  "type": "api-change",
+  "category": "``appflow``",
+  "description": "[``botocore``] Doc only updates for clarification around OAuth2GrantType for Salesforce."
+}

.changes/next-release/api-change-elbv2-58421.json

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+{
+  "type": "api-change",
+  "category": "``elbv2``",
+  "description": "[``botocore``] Add zonal_shift.config.enabled attribute. Add new AdministrativeOverride construct in the describe-target-health API response to include information about the override status applied to a target."
+}

.changes/next-release/api-change-emr-12517.json

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+{
+  "type": "api-change",
+  "category": "``emr``",
+  "description": "[``botocore``] This release provides new parameter \"Context\" in instance fleet clusters."
+}

.changes/next-release/api-change-guardduty-80575.json

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+{
+  "type": "api-change",
+  "category": "``guardduty``",
+  "description": "[``botocore``] Added a new field for network connection details."
+}

.changes/next-release/api-change-robomaker-7095.json

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+{
+  "type": "api-change",
+  "category": "``robomaker``",
+  "description": "[``botocore``] Documentation update: added support notices to each API action."
+}