feat: update AWS service endpoints metadata

Author: aws-sdk-kotlin-ci

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

@@ -18780,6 +18780,7 @@
               "tags" : [ "dualstack" ]
             } ]
           },
+          "eu-central-2" : { },
           "eu-north-1" : {
             "variants" : [ {
               "hostname" : "polly.eu-north-1.api.aws",