Accept any json value in result and error (#14954)

Some users might throw JS values that aren't strings.

<img width="3456" height="2160" alt="CleanShot 2025-10-07 at 17 48
36@2x"
src="https://github.com/user-attachments/assets/b02f886c-1c8e-4186-954b-6d0e025a6fcf"
/>

Errors seen previously:

<img width="1308" height="840" alt="image"
src="https://github.com/user-attachments/assets/1d7e4947-8f6f-44fb-aefb-c7d105712204"
/>

packages/twenty-shared/src/workflow/schemas/workflow-run-state-step-info-schema.ts

@@ -3,7 +3,7 @@ import { workflowRunStepStatusSchema } from './workflow-run-step-status-schema';
 
 export const workflowRunStateStepInfoSchema = z.object({
   result: z.any().optional(),
-  error: z.string().optional(),
+  error: z.any().optional(),
   status: workflowRunStepStatusSchema,
   get history() {
     return z