[9.0] [ML] Ensure queued AbstractRunnables are notified when executor stops (#135966)#136126

elasticsearchmachine merged 1 commit intoelastic:9.0elastic/elasticsearch:9.0from

DonalEvans:backport/9.0/pr-135966DonalEvans/elasticsearch:backport/9.0/pr-135966Copy head branch name to clipboard