### Description

**Background**
As part of https://github.com/elastic/kibana/issues/104986 we will be adding the ability for Elastic Agents to send agent monitoring data to a remote Elasticsearch cluster. In order to achieve this, we will need a service token for the remote cluster which fleet server will use. 

This service account will need less permissions than the `elastic/fleet-server` as integration data will not be sent to remote clusters yet.

**Service Account Details**

Name: `elastic/fleet-server-remote`

Permissions:
-  for indices `logs-*`, `metrics-*` privileges "write", "create_index", "auto_configure"

x-pack/plugin/security/src/main/java/org/elasticsearch/xpack/security/authc/service/ElasticServiceAccounts.java
.indices("traces-apm.sampled-*")
                    .privileges("read", "monitor", "maintenance")
                    .build(),
                
                RoleDescriptor.IndicesPrivileges.builder()
                    .indices(".fleet-secrets*")
                    .privileges("read")
                    .allowRestrictedIndices(true)
                    .build(),
                
                RoleDescriptor.IndicesPrivileges.builder()
                    .indices(".fleet-actions*")
                    .privileges("read", "write", "monitor", "create_index", "auto_configure", "maintenance")
                    .allowRestrictedIndices(true)
                    .build(),
                RoleDescriptor.IndicesPrivileges.builder()
                    .indices(".fleet-agents*")
                    .privileges("read", "write", "monitor", "create_index", "auto_configure", "maintenance")
                    .allowRestrictedIndices(true)
                    .build(),
                RoleDescriptor.IndicesPrivileges.builder()
                    .indices(".fleet-artifacts*")
                    .privileges("read", "write", "monitor", "create_index", "auto_configure", "maintenance")
                    .allowRestrictedIndices(true)
                    .build(),