[TRACKING ISSUE] Promote alto auth codecs to stable [API-2134]

The tracking issue for the Java side PR.

See https://github.com/hazelcast/hazelcast/pull/25486 for details.

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As part of promiting ALTO to stable in 5.4, we will get rid of experimental authentication codecs for Alto. This PR does that.

Fixes API-2134

protocol PR : https://github.com/hazelcast/hazelcast-client-protocol/pull/480

Breaking changes (list specific methods/types/messages):
* None because we are removing some experimental codec

Checklist:
- [x] Labels (`Team:`, `Type:`, `Source:`, `Module:`) and Milestone set
- [x] Label `Add to Release Notes` or `Not Release Notes content` set
- [x] Request reviewers if possible
- [x] Send backports/forwardports if fix needs to be applied to past/future releases
- [x] New public APIs have `@Nonnull/@Nullable` annotations
- [x] New public APIs have `@since` tags in Javadoc

Inizia con il PR lato Java all’indirizzo https://github.com/hazelcast/hazelcast/pull/25486 e con il PR del protocollo all’indirizzo https://github.com/hazelcast/hazelcast-client-protocol/pull/480. Esamina in che modo queste modifiche promuovono ALTO a stabile rimuovendo i relativi codec di autenticazione sperimentali; il lavoro è completato quando il lavoro indicato è stato portato a termine senza le breaking changes elencate.

Scritto dal modello di indicizzazione a partire dal testo della issue.