Analyze the stable branches readiness review across releases

Context

Stable branch readiness is reviewed at different stages on GitLab releases:

Release type	Stage	Description	What should be reviewed?	Current State	Followup Issues
Monthly	RC pipelines are green	Executed after the release candidate has been created	RC stable branch pipeline	RC stable branch	n/a
Patch	security_release_prepare:check_component_branch_pipeline_status	As part of the security_release:prepare stage. Executed at the early stages of a patch release	Stable branches within the policy (not the default branch)	Stable branches within the policy (not the default branch)	n/a
Patch	security_release_tag:check_component_branch_pipeline_status	Executed after the backports have been merged in a patch	Release environments associated with the versions within the policy	Stable branches within the policy (not the default branch)	#21167 (closed)
Internal	internal_release_prepare:check_component_branch_pipeline_status	Executed at the early stages of an internal release	Release environments associated with the Dedicated versions	Stable branches for the Dedicated versions	#21167 (closed)

Proposal: Review the readiness check of stable branches

The readiness check of stable branches should be reviewed to guarantee their efficiency. for example, some of these checks review the status of the default branches, and these are not used in release types.

Exit criteria

• Analyze each readiness check of release types
• Ensure it is reviewing the required branches per release
• Open follow-up to update the checks as necessary