Closed issues keep the ready for review label

[RaresKeY]

Prerequisites

• I searched open issues, open PRs, and discussions and did not find an existing report of this bug.
• This is not a security vulnerability.
• I checked the latest code on the dev branch and the bug is still present.

Install Method

Other (repository GitHub Actions workflow)

Operating System

Other

Steps to Reproduce

1. Open or edit an issue whose description passes the issue-description check so it receives the ready for review label.
2. Close the issue.
3. Observe that the issue remains labelled ready for review even though it is no longer awaiting review.
4. Edit the closed issue and observe that the existing edited trigger can validate it again without any closed-state guard.

Expected Behaviour

Closing an issue removes ready for review. If a closed issue is edited later, the label stays removed. Reopening the issue runs the existing validation flow and restores either ready for review or needs more info from the current description.

Actual Behaviour

The issue-description workflow listens only for opened, edited, and reopened, so closure does not remove ready for review. The checker also has no closed-state guard, allowing a later edit to a closed issue to apply the normal open-issue label result.

Logs / Screenshots

N/A - the stale label is visible on the closed issue and no application runtime is involved.

Model / Backend (if relevant)

N/A

Are you willing to submit a fix?

Yes - I can open a PR

Additional Information

The focused fix is to add closed to the existing workflow trigger and make the existing checker remove only ready for review before returning for any closed issue. Removing needs more info on closure is a separate policy choice and is not part of this report.

#2453 and PR #5486 are related maintenance work because they extract shared helpers from the same description-check scripts, but they intentionally preserve existing behavior and do not own this label lifecycle bug.