Post release tasks for 4.7.3

[davidjiglesias]

Description

This issue attempts to track the steps necessary to complete post-release maintenance tasks for 4.7.3.
The goal is to complete the following tasks, each task must have a PR associated with this issue.

The branches must follow the naming: merge-<ORIGIN_BRANCH>-into-<DESTINATION_BRANCH>. For example, merge-4.7.3-into-4.8.0.

Tasks

• Merge branch 4.7.3 into branch 4.8.0.
• Merge branch 4.8.0 into branch 4.8.1. Merge 4.8.0 into 4.8.1 #1248
• Merge branch 4.8.1 into branch 4.8.2. Merge 4.8.1 into 4.8.2 #1249
• Merge branch 4.8.2 into branch 4.9.0. Merge 4.8.2 into 4.9.0 #1250
• Merge branch 4.9.0 into branch master. Merge 4.9.0 into master #1251
• Publish GitHub release as latest.
• Delete all stage pre-releases for 4.7.3 (https://github.com/wazuh/wazuh-docker/releases).
• Delete all stage tags for v4.7.3. BE CAREFUL NOT TO DELETE DEFINITIVE TAG. Example: v4.7.3-rc1, 4.7.3-alpha1, etc.
• Delete branch 4.7.3.
• Update Docker hub readme compatibility matrix to include 4.5.3 for manager, dashboard, and indexer.
• Delete all stage Docker hub images for v4.7.3. BE CAREFUL NOT TO DELETE DEFINITIVE DOCKER IMAGES. Example: v4.7.3-rc1, 4.7.3-alpha1, etc.
• Delete branch 4.7.3

[vcerenu]

LGTM