refactor: migrate promotion module (#10410)

packages/modules/promotion/mikro-orm.config.dev.ts

@@ -1,6 +1,6 @@
 import * as entities from "./src/models"
 import { defineMikroOrmCliConfig, Modules } from "@medusajs/framework/utils"
 
-export default defineMikroOrmCliConfig(Modules.PRODUCT, {
+export default defineMikroOrmCliConfig(Modules.PROMOTION, {
   entities: Object.values(entities),
 })