[Feature Request] Delete pipelines when deleting repositories

[yk634]

What happened:

Only the administrator can delete pipelines associated with a deleted repository.
Users frequently inadvertently delete repositories before they delete pipelines, increasing the operations of administrators.

What you expected to happen:

If a repository is deleted, we would like the pipeline associated with that repository to be deleted as well.

This could be implemented using webhook on repository deletion.
https://docs.github.com/en/webhooks/webhook-events-and-payloads?actionType=deleted#repository