fix(workflows-sdk): Fix StepFunction typings and custom step name (#6468)

* fix(workflows=sdk): Fix StepFunction typings and custom step name

* Create smart-nails-switch.md

* fixes

* fixes

* fixes

---------

Co-authored-by: Oli Juhl <59018053+olivermrbl@users.noreply.github.com>

packages/workflows-sdk/src/utils/composer/create-step.ts

@@ -2,9 +2,9 @@ import {
   TransactionStepsDefinition,
   WorkflowManager,
 } from "@medusajs/orchestration"
-import { OrchestrationUtils, isString } from "@medusajs/utils"
+import { isString, OrchestrationUtils } from "@medusajs/utils"
 import { ulid } from "ulid"
-import { StepResponse, resolveValue } from "./helpers"
+import { resolveValue, StepResponse } from "./helpers"
 import { proxify } from "./helpers/proxy"
 import {
   CreateWorkflowComposerContext,
@@ -199,6 +199,7 @@ function applyStep<
           ...localConfig,
         })
 
+        ret.__step__ = newStepName
         WorkflowManager.update(this.workflowId, this.flow, this.handlers)
 
         return proxify(ret)