### Elasticsearch Version

8.x

### Installed Plugins

_No response_

### Java Version

_bundled_

### OS Version

Any

### Problem Description

ILM [SwapAliasesAndDeleteSourceIndexStep](https://github.com/elastic/elasticsearch/blob/ffcf0eac010df3b5ba7989c5dd87bf362dd0d311/x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/ilm/SwapAliasesAndDeleteSourceIndexStep.java) doesn't play nicely with with hidden aliases. 

When we copy the aliases from the source index in the move step, we do not copy the is_hidden value.

This can lead to permanently bad ILM state with an error like:

```
policy [kibana-event-log-policy] for index [.kibana-event-log-7.11.1-000044] failed on step [{"phase":"frozen","action":"searchable_snapshot","name":"swap-aliases"}]. Moving to ERROR step java.lang.IllegalStateException: alias [.kibana-event-log-7.11.1] has is_hidden set to true on indices [...]; alias must have the same is_hidden setting on all indices at org.elasticsearch.cluster.metadata.Metadata$Builder.validateAlias(Metadata.java:2089) 
```

### Steps to Reproduce

Combination of ILM and hidden aliases.

### Logs (if relevant)

_No response_
x-pack/plugin/core/src/main/java/org/elasticsearch/xpack/core/ilm/SwapAliasesAndDeleteSourceIndexStep.java
client.admin().indices().aliases(aliasesRequest, ActionListener.wrap(response -> {
            if (response.isAcknowledged() == false) {
                logger.warn("aliases swap from [{}] to [{}] response was not acknowledged", sourceIndexName, targetIndex);
            }
            listener.onResponse(null);
        }, listener::onFailure));
    }
    @Override
    public boolean indexSurvives() {
        return false;
    }
    @Override
    public int hashCode() {
        return Objects.hash(super.hashCode(), targetIndexNameSupplier, createSourceIndexAlias);
    }
    @Override
    public boolean equals(Object obj) {
        if (obj == null) {
            return false;
        }
        if (getClass() != obj.getClass()) {
            return false;
        }
        SwapAliasesAndDeleteSourceIndexStep other = (SwapAliasesAndDeleteSourceIndexStep) obj;
        return super.equals(obj)
            && Objects.equals(targetIndexNameSupplier, other.targetIndexNameSupplier)
            && createSourceIndexAlias == other.createSourceIndexAlias;
    }
}