feat: update AWS service endpoints metadata

Author: aws-sdk-kotlin-ci

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

@@ -547,10 +547,12 @@
           "ap-south-1" : { },
           "ap-southeast-1" : { },
           "ap-southeast-2" : { },
+          "ca-central-1" : { },
           "eu-central-1" : { },
           "eu-west-1" : { },
           "eu-west-2" : { },
           "eu-west-3" : { },
+          "sa-east-1" : { },
           "us-east-1" : { },
           "us-east-2" : { },
           "us-west-2" : { }