Change StaffHireArgs params to reflect internal visitor (#23791)

distribution/openrct2.d.ts

@@ -1206,7 +1206,7 @@ declare global {
     interface StaffHireArgs extends GameActionArgs {
         autoPosition: boolean;
         staffType: number; // 0: handyman, 1: mechanic, 2: security, 3: entertainer
-        entertainerType: number; // see EntertainerCostume in openrct2/entity/Staff.h
+        costumeIndex: number; // peep animation object id to use as costume
         staffOrders: number; // bit mask. See STAFF_ORDERS in openrct2/entity/Staff.h
     }