Support new stage Beta 6 for 4.8.0 in wazuh-qa repository

[davidjiglesias]

Description

This issue attempts to support a new stage Beta 6 for 4.8.0 in the wazuh-qa repository.

Tasks

• [x] Ensure changelog is updated for 4.8.0 (if applicable). https://github.com/wazuh/wazuh-qa/pull/5271
• [x] Bump revision for branch 4.8.0 on wazuh-qa repository. https://github.com/wazuh/wazuh-qa/pull/5272
• [x] Create tag v4.8.0-beta6 from branch 4.8.0 on wazuh-qa repository.
• [x] Create and publish a pre-release: https://github.com/wazuh/wazuh-qa/releases/tag/v4.8.0-beta6.

[santipadilla]

LGTM