When I try to configure AWS OpenSearch Serverless Service as a backend of my Hibernate Search application, the connection does not work.

1. When I activate request signing the target service is hardcoded as "es" (and not "aoss")
2. When I disable request signing the request is not authenticated at all

It would be awesome if there is a out-of-the-box solution for OpenSearch Serverless.

Annotation: It seems to be more than just making the singingName configurable.

References:
https://stackoverflow.com/questions/76405139/hibernate-search-aws-opensearch-serverless-connection-problem
https://discourse.hibernate.org/t/aws-opensearch-serverless/7249/5