Update endpoints model

Author: AWS SDK for Go v2 automation user

codegen/smithy-aws-go-codegen/src/main/resources/software/amazon/smithy/aws/go/codegen/endpoints.json

@@ -22815,6 +22815,7 @@
               "tags" : [ "dualstack" ]
             } ]
           },
+          "ap-east-2" : { },
           "ap-northeast-1" : {
             "variants" : [ {
               "hostname" : "securityhub.ap-northeast-1.api.aws",