VATICAN CITY — A high-level Vatican commission voted against allowing Catholic women to serve as deacons, maintaining the global Church’s practice of all-male clergy, according to a report given to Pope Leo and released on Thursday. The commission, in a 7-1 vote, said historical research and theological investigation “excludes the possibility” of allowing women to serve as deacons at this time but recommended further study of the issue. Discussions about the possibility of women deacons , who