RTÉ boss Dee Forbes is to face a Dáil questioning after some of the broadcaster’s top stars failed to stick to COVID restrictions.Oireachtas Communications Committee chairwoman Niamh Smyth told the Irish Daily Mail last night: ‘RTÉ needs to swiftly calm public concern.’And in an indication that the station can expect a tough grilling, Independent TD Mattie McGrath, a committee member, said he is concerned that the State broadcaster has become a Government ‘mouthpiece’, and has abjectly failed to