Support new stage RC 2 for 4.7.3 in wazuh-kubernetes repository

Description

This issue attempts to support a new stage RC 2 for 4.7.3 in the wazuh-kubernetes repository.

[x] Ensure changelog is updated for 4.7.3 (if applicable).
[x] Bump revision for branch 4.7.3 on wazuh-kubernetes repository. https://github.com/wazuh/wazuh-kubernetes/pull/605
[x] Create tag v4.7.3-rc2 from branch 4.7.3 on wazuh-kubernetes repository.
[x] Create and publish a pre-release: https://github.com/wazuh/wazuh-kubernetes/releases/tag/v4.7.3-rc2.