[Hashicorp Vault]: Managed dashboards for metrics and audit logs

### Integration Name

Hashicorp Vault [hashicorp_vault]

### Dataset Name

_No response_

### Integration Version

1.30.1

### Agent Version

8.19.14

### OS Version and Architecture

AzureLinux

### User Goal

Hello!
We are using the HCP platform, and have a Vault Dedicated deployed there. We have just enabled [audit log streaming](https://developer.hashicorp.com/hcp/docs/vault/logs-metrics/elasticsearch/logs) and [metrics streaming](https://developer.hashicorp.com/hcp/docs/vault/logs-metrics/elasticsearch/metrics) from Vault Dedicated to our Elastic Cloud instance. Now that the data is streamed to our Elastic Cloud instance, we want to visualize the data in dashboards. There is a banner in the HCP portal that mentions managed dashboards for Kibana, but the IBM support confirmed to me that this banner is misleading and managed/pre-built dashboards are not available for Kibana at this time (only for other tools like Datadog, Splunk and Grafana).

It would be great if there was some kind of integration with pre-built dashboards for HCP Vault Dedicated data coming in via data streaming.

### Existing Features

The [Hashicorp Vault integration](https://www.elastic.co/docs/reference/integrations/hashicorp_vault) can install two dashboards (operational logs and audit logs), but they seem to be targeting self-managed Vault installations where Elastic Agent collects the logs and metrics. These dashboards do not work with the data streaming feature of Vault Dedicated.

### What did you see?

There are no pre-built managed dashboards for data streamed from HCP.

### Anything else?

The IBM support mentioned [this issue](https://github.com/elastic/integrations/issues/8847) to me, where managed dashboards are mentioned. But only the documentation around data streaming was updated in the issue.