fix(Guild): resolve role id and call existing handler (#3904)

src/structures/Guild.js

@@ -1169,7 +1169,7 @@ class Guild extends Base {
   setRolePositions(rolePositions) {
     // Make sure rolePositions are prepared for API
     rolePositions = rolePositions.map(o => ({
-      id: o.role,
+      id: this.roles.resolveID(o.role),
       position: o.position,
     }));
 
@@ -1181,7 +1181,7 @@ class Guild extends Base {
       })
       .then(
         () =>
-          this.client.actions.GuildRolePositionUpdate.handle({
+          this.client.actions.GuildRolesPositionUpdate.handle({
             guild_id: this.id,
             roles: rolePositions,
           }).guild,