localize RoleBriefing (#28824)

Co-authored-by: deltanedas <@deltanedas:kde.org>

Content.Server/Roles/RoleBriefingSystem.cs

@@ -11,6 +11,6 @@ public sealed class RoleBriefingSystem : EntitySystem
 
     private void OnGetBriefing(EntityUid uid, RoleBriefingComponent comp, ref GetBriefingEvent args)
     {
-        args.Append(comp.Briefing);
+        args.Append(Loc.GetString(comp.Briefing));
     }
 }