fix: [attribute] Typo in regex. Fix #6354
fix: [attribute] Typo in regex. Fix #6354

SteveClement/MISP,MISP/MISP,SteveClement/MISP,MISP/MISP,MISP/MISP,MISP/MISP,MISP/MISP,SteveClement/MISP,SteveClement/MISP,SteveClement/MISP