Add changelog entries from botocore

.changes/next-release/api-change-appconfig-75198.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``appconfig``",
+  "description": "[``botocore``] AWS AppConfig introduces KMS customer-managed key (CMK) encryption support for data saved to AppConfig's hosted configuration store."
+}

.changes/next-release/api-change-datazone-96033.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``datazone``",
+  "description": "[``botocore``] Initial release of Amazon DataZone"
+}

.changes/next-release/api-change-mediatailor-4136.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``mediatailor``",
+  "description": "[``botocore``] Updates DescribeVodSource to include a list of ad break opportunities in the response"
+}

.changes/next-release/api-change-mgn-67956.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``mgn``",
+  "description": "[``botocore``] This release includes the following new APIs: ListConnectors, CreateConnector,  UpdateConnector, DeleteConnector and UpdateSourceServer to support the source action framework feature."
+}

.changes/next-release/api-change-sagemaker-91655.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``sagemaker``",
+  "description": "[``botocore``] Adding support for AdditionalS3DataSource, a data source used for training or inference that is in addition to the input dataset or model data."
+}