Add changelog entries from botocore

.changes/next-release/api-change-bedrockagent-49685.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``bedrock-agent``",
+  "description": "[``botocore``] This release adds support for using MongoDB Atlas as a vector store when creating a knowledge base."
+}

.changes/next-release/api-change-ec2-34249.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``ec2``",
+  "description": "[``botocore``] Documentation updates for Amazon EC2."
+}

.changes/next-release/api-change-personalizeruntime-5072.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``personalize-runtime``",
+  "description": "[``botocore``] This release adds support for a Reason attribute for predicted items generated by User-Personalization-v2."
+}

.changes/next-release/api-change-securityhub-84900.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``securityhub``",
+  "description": "[``botocore``] Updated CreateMembers API request with limits."
+}

.changes/next-release/api-change-sesv2-33338.json

@@ -0,0 +1,5 @@
+{
+  "type": "api-change",
+  "category": "``sesv2``",
+  "description": "[``botocore``] Fixes ListContacts and ListImportJobs APIs to use POST instead of GET."
+}