feat: update AWS service endpoints metadata

Author: aws-sdk-kotlin-ci

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

@@ -20436,6 +20436,7 @@
       },
       "vpc-lattice" : {
         "endpoints" : {
+          "af-south-1" : { },
           "ap-northeast-1" : { },
           "ap-northeast-2" : { },
           "ap-south-1" : { },
@@ -20444,6 +20445,7 @@
           "ca-central-1" : { },
           "eu-central-1" : { },
           "eu-north-1" : { },
+          "eu-south-1" : { },
           "eu-west-1" : { },
           "eu-west-2" : { },
           "eu-west-3" : { },