Can cherry-pick branches be deleted once cherry-pick is completed?

There is a growing list of branches that are likely due to be deleted in:
https://github.com/adoptium/aqa-tests/branches/active

Can we automate the deletion of the branches created by the cherry-pick workflow?

Start by inspecting the active branches list and locating the cherry-pick workflow that creates those branches. Confirm how completed cherry-picks are identified and define done as automatically deleting only branches created by completed cherry-pick runs, without affecting other active branches.

Written by the indexing model from the issue text.