Allow to stop running workflow (#15270)

https://github.com/user-attachments/assets/599154e4-8743-471b-b05a-721b635bcf4e

On stoppage:
- if no running steps, mark pending as failed and end the workflow
- if running steps, set as stopping and exit. Going to the next step, as
the workflow is not running anymore, it will naturally stop

packages/twenty-server/src/modules/workflow/workflow-trigger/workspace-services/workflow-trigger.workspace-service.ts

@@ -142,6 +142,13 @@ export class WorkflowTriggerWorkspaceService {
     return true;
   }
 
+  async stopWorkflowRun(workflowRunId: string) {
+    return this.workflowRunnerWorkspaceService.stopWorkflowRun(
+      this.getWorkspaceId(),
+      workflowRunId,
+    );
+  }
+
   private async performActivationSteps(
     workflow: WorkflowWorkspaceEntity,
     workflowVersion: WorkflowVersionWorkspaceEntity,