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

@@ -3671,6 +3671,7 @@
           "ap-south-1" : { },
           "ap-southeast-1" : { },
           "ap-southeast-2" : { },
+          "ap-southeast-3" : { },
           "ca-central-1" : {
             "variants" : [ {
               "hostname" : "ebs-fips.ca-central-1.amazonaws.com",
@@ -5577,6 +5578,11 @@
           "us-west-2" : { }
         }
       },
+      "gamesparks" : {
+        "endpoints" : {
+          "us-east-1" : { }
+        }
+      },
       "glacier" : {
         "defaults" : {
           "protocols" : [ "http", "https" ]