feat: update AWS service endpoints metadata

Author: aws-sdk-kotlin-ci

codegen/aws-sdk-codegen/src/main/resources/aws/sdk/kotlin/codegen/endpoints.json

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