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

[hz-devops-test]

The tracking issue for the Java side PR.

See hazelcast/hazelcast#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 : hazelcast/hazelcast-client-protocol#480

Breaking changes (list specific methods/types/messages):

• None because we are removing some experimental codec

Checklist:

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