feat: workflow delay action (Pause - Wait/Sleep/Delay) (#14915)

## Description

- This PR focuses on issue
https://github.com/orgs/twentyhq/projects/1/views/33?pane=issue&itemId=93150683&issue=twentyhq%7Ccore-team-issues%7C20
- added Workflow delay as a Flow action
- for V1 added Type 1: Resume at a specific date or time


## Visual Appearance
<img width="1792" height="1038" alt="Screenshot 2025-10-09 at 5 46
18 PM"
src="https://github.com/user-attachments/assets/e62980e9-59c7-4e5a-b8ec-1e848a462d3f"
/>

<img width="1792" height="1037" alt="Screenshot 2025-10-09 at 5 46
35 PM"
src="https://github.com/user-attachments/assets/7c3f4e39-ab0a-40ed-97a8-4f0cdb86f295"
/>

---------

Co-authored-by: Thomas Trompette <thomas.trompette@sfr.fr>

packages/twenty-shared/src/workflow/schemas/workflow-action-schema.ts

@@ -11,6 +11,7 @@ import { workflowHttpRequestActionSchema } from './http-request-action-schema';
 import { workflowIteratorActionSchema } from './iterator-action-schema';
 import { workflowSendEmailActionSchema } from './send-email-action-schema';
 import { workflowUpdateRecordActionSchema } from './update-record-action-schema';
+import { workflowDelayActionSchema } from './workflow-delay-action-schema';
 
 export const workflowActionSchema = z.discriminatedUnion('type', [
   workflowCodeActionSchema,
@@ -24,5 +25,6 @@ export const workflowActionSchema = z.discriminatedUnion('type', [
   workflowAiAgentActionSchema,
   workflowFilterActionSchema,
   workflowIteratorActionSchema,
+  workflowDelayActionSchema,
   workflowEmptyActionSchema,
 ]);