docs: update imports of middlewares and http types (#9440)

www/apps/book/app/basics/workflows/page.mdx

@@ -100,7 +100,7 @@ To execute the workflow, invoke it passing the Medusa container as a parameter.
     import type {
       MedusaRequest,
       MedusaResponse,
-    } from "@medusajs/medusa"
+    } from "@medusajs/framework/http"
     import myWorkflow from "../../../workflows/hello-world"
 
     export async function GET(
@@ -125,7 +125,7 @@ To execute the workflow, invoke it passing the Medusa container as a parameter.
     import {
       type SubscriberConfig,
       type SubscriberArgs,
-    } from "@medusajs/medusa"
+    } from "@medusajs/framework"
     import myWorkflow from "../workflows/hello-world"
     import { Modules } from "@medusajs/framework/utils"
     import { IUserModuleService } from "@medusajs/framework/types"