AWS Cost Explorer Service Update: Support dual-stack endpoints for ce api

Author: AWS

.changes/next-release/feature-AWSCostExplorerService-eeed16e.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "AWS Cost Explorer Service",
+    "contributor": "",
+    "description": "Support dual-stack endpoints for ce api"
+}