Some indexer tasks are only executed once

[davidcr01]

Description

Related: https://github.com/wazuh/wazuh-automation/issues/1479

The aim of this PR is to add a condition to some of the Wazuh indexer tasks of the wazuh-indexer role. These tasks are included in the security_actions.yml file, and they should be executed only once (Wazuh indexer cluster initialization, ISM script execution, etc).
Before, these tasks were executed in every node, and this may cause some unexpected errors:

18:44:31  TASK [/tmp/wazuh-ansible/roles/wazuh/wazuh-indexer : Initialize the Opensearch security index in Wazuh indexer] ***
18:44:31  changed: [54.151.68.99]
18:44:33  
18:44:33  TASK [/tmp/wazuh-ansible/roles/wazuh/wazuh-indexer : Initialize the Opensearch security index in Wazuh indexer] ***
18:44:33  changed: [54.177.124.185]
18:44:34  
18:44:34  TASK [/tmp/wazuh-ansible/roles/wazuh/wazuh-indexer : Initialize ISM script] ****
18:44:34  fatal: [54.151.68.99]: FAILED! => {
18:44:34      "changed": true,
18:44:34      "cmd": [
18:44:34          "/usr/share/wazuh-indexer/bin/indexer-ism-init.sh",
18:44:34          "-p",
18:44:34          "****",
18:44:34          "-i",
18:44:34          "10.0.2.81"
18:44:34      ],
18:44:34      "delta": "0:00:01.378543",
18:44:34      "end": "2023-12-19 17:44:34.038040",
18:44:34      "rc": 1,
18:44:34      "start": "2023-12-19 17:44:32.659497"
18:44:34  }
18:44:34  
18:44:34  STDOUT:
18:44:34  
18:44:34  Will create index templates to configure the alias
18:44:34   SUCC: 'wazuh-alerts' template created or updated
18:44:34   SUCC: 'wazuh-archives' template created or updated
18:44:34  Will create the 'rollover_policy' policy
18:44:34    ERROR: 'rollover_policy' policy not created => 409
18:44:34  ERROR: Indexer ISM initialization failed. Check /tmp/wazuh-indexer/ism-init.log for more information.

Now, with this change, this tasks are only executed in the first node of the Wazuh indexer cluster.

Testing

• Testing single-node and multi-node deployments
• Testing demo environment
• Testing single-node again with the last commit

This PR should be merged also with this PR: https://github.com/wazuh/wazuh-automation/pull/1542