Update delete_backport_branch workflow to include release-chores branches#1915

RileyJergerAmazon wants to merge 1 commit intoopensearch-project:mainopensearch-project/alerting:mainfrom

RileyJergerAmazon:update-delete-branch-workflowRileyJergerAmazon/alerting:update-delete-branch-workflowCopy head branch name to clipboard