Mexico’s El Relicario, whose “El rostro cubierto de besos” screened at Cannes Critics’ Week in its 2023 Morelia showcase, has boarded Ximena Valdivia’s Malaga Festival winner “4Eber,” a movie melding the modern teen dance scene in Cusco and ancient and contemporary fantasy and mythology. Written by Valdivia and Costa Rica’s Luisa Mora Fernández, a co-scribe …