lighteval

f28a270a - CLI list tasks (#142)

CLI list tasks (#142) Adds the list of tasks to the CLI --------- Co-authored-by: Clémentine Fourrier <22726840+clefourrier@users.noreply.github.com> Co-authored-by: Nathan Habib <30601243+NathanHB@users.noreply.github.com>