Remove usages of deprecated LocalStack code features in AWS replicator

Currently, the AWS Replicator extension is using some parts of the LocalStack codebase which is deprecated and about to be removed:

• localstack.utils.server.http2_server.run_server which is based on Quart (which has been superseded by the underlying hypercorn quite some time ago).
• localstack.aws.api.HttpRequest which should be replaced with localstack.http.Request.

These usages are currently blocking the following PRs in localstack/localstack:

• https://github.com/localstack/localstack/pull/9754
• https://github.com/localstack/localstack/pull/9757

It would be best to refactor the AWS Replicator Extension such that it spawns the Auth Proxy a new Gateway (and migrate the logic to a implement a LocalStack handlerchain handler).
/cc @lukqw @whummer @thrau

Comienza localizando los usos de AWS Replicator de localstack.utils.server.http2_server.run_server y localstack.aws.api.HttpRequest, y después revisa los PRs de localstack enlazados para conocer el contexto de compatibilidad. Se considera terminado cuando se hayan eliminado esos usos obsoletos y se haya migrado Auth Proxy hacia un Gateway y un LocalStack handlerchain handler.