feat(client-cloudtrail): Add v2 smoke tests and smithy smokeTests trait for SDK testing.

Author: awstools

codegen/sdk-codegen/aws-models/cloudtrail.json

@@ -3133,7 +3133,20 @@
       ],
       "traits": {
         "smithy.api#documentation": "<p>Retrieves settings for one or more trails associated with the current Region for your\n         account.</p>",
-        "smithy.api#idempotent": {}
+        "smithy.api#idempotent": {},
+        "smithy.test#smokeTests": [
+          {
+            "id": "DescribeTrailsSuccess",
+            "params": {},
+            "vendorParams": {
+              "region": "us-west-2"
+            },
+            "vendorParamsShape": "aws.test#AwsVendorParams",
+            "expect": {
+              "success": {}
+            }
+          }
+        ]
       }
     },
     "com.amazonaws.cloudtrail#DescribeTrailsRequest": {