Amazon Neptune Update: Add v2 smoke tests and smithy smokeTests trait for SDK testing.

Author: AWS

.changes/next-release/feature-AmazonNeptune-17a2a87.json

@@ -0,0 +1,6 @@
+{
+    "type": "feature",
+    "category": "Amazon Neptune",
+    "contributor": "",
+    "description": "Add v2 smoke tests and smithy smokeTests trait for SDK testing."
+}

services/neptune/src/main/resources/codegen-resources/endpoint-tests.json

@@ -685,17 +685,6 @@
             "expect": {
                 "error": "Invalid Configuration: Missing Region"
             }
-        },
-        {
-            "documentation": "Partition doesn't support DualStack",
-            "expect": {
-                "error": "DualStack is enabled but this partition does not support DualStack"
-            },
-            "params": {
-                "Region": "us-isob-east-1",
-                "UseFIPS": false,
-                "UseDualStack": true
-            }
         }
     ],
     "version": "1.0"

services/neptune/src/main/resources/codegen-resources/service-2.json

@@ -4,13 +4,15 @@
     "apiVersion":"2014-10-31",
     "endpointPrefix":"rds",
     "protocol":"query",
+    "protocols":["query"],
     "serviceAbbreviation":"Amazon Neptune",
     "serviceFullName":"Amazon Neptune",
     "serviceId":"Neptune",
     "signatureVersion":"v4",
     "signingName":"rds",
     "uid":"neptune-2014-10-31",
-    "xmlNamespace":"http://rds.amazonaws.com/doc/2014-10-31/"
+    "xmlNamespace":"http://rds.amazonaws.com/doc/2014-10-31/",
+    "auth":["aws.auth#sigv4"]
   },
   "operations":{
     "AddRoleToDBCluster":{