docs: update middlewares to use defineMiddlewares (#8283)

www/apps/resources/app/recipes/integrate-ecommerce-stack/page.mdx

@@ -347,10 +347,10 @@ For example, suppose an administrator changes the product data in the ERP system
     Then, create the file `src/api/middlewares.ts` with the following content:
 
     ```ts title="src/api/middlewares.ts"
-    import { MiddlewaresConfig } from "@medusajs/medusa"
+    import { defineMiddlewares } from "@medusajs/medusa"
     import { raw } from "body-parser"
-    
-    export const config: MiddlewaresConfig = {
+
+    export default defineMiddlewares({
       routes: [
         {
           method: ["POST", "PUT"],
@@ -359,7 +359,7 @@ For example, suppose an administrator changes the product data in the ERP system
           middlewares: [raw({ type: "application/json" })],
         },
       ],
-    }
+    })
     ```
 
     This replaces the default JSON middleware with the raw middleware, which is useful for webhook routes.