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

@@ -9267,6 +9267,7 @@
           "ap-south-1" : { },
           "ap-southeast-1" : { },
           "ap-southeast-2" : { },
+          "ap-southeast-3" : { },
           "ca-central-1" : { },
           "eu-central-1" : { },
           "eu-north-1" : { },
@@ -19490,7 +19491,8 @@
           }
         },
         "endpoints" : {
-          "us-iso-east-1" : { }
+          "us-iso-east-1" : { },
+          "us-iso-west-1" : { }
         }
       },
       "sts" : {