maintainers/team-list: add curran to mercury

+1
+1
maintainers/team-list.nix
··· 810 members = [ 811 _9999years 812 Gabriella439 813 ]; 814 scope = "Group registry for packages maintained by Mercury"; 815 shortName = "Mercury Employees";
··· 810 members = [ 811 _9999years 812 Gabriella439 813 + curran 814 ]; 815 scope = "Group registry for packages maintained by Mercury"; 816 shortName = "Mercury Employees";