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• localstack.utils.server.http2_server.run_server which is based on Quart (which has been superseded by the underlying hypercorn quite some time ago).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

まず、AWS Replicator による localstack.utils.server.http2_server.run_server と localstack.aws.api.HttpRequest の使用箇所を見つけ、次に互換性の背景を確認するため、リンクされている localstack PR を確認します。これらの非推奨の使用箇所を削除し、Auth Proxy を Gateway と LocalStack handlerchain handler に移行すれば完了です。