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/common/utils/workflow-has-running-steps.util.ts

@@ -0,0 +1,15 @@
+import { StepStatus, type WorkflowRunStepInfos } from 'twenty-shared/workflow';
+
+import { type WorkflowAction } from 'src/modules/workflow/workflow-executor/workflow-actions/types/workflow-action.type';
+
+export const workflowHasRunningSteps = ({
+  stepInfos,
+  steps,
+}: {
+  stepInfos: WorkflowRunStepInfos;
+  steps: WorkflowAction[];
+}) => {
+  return steps.some(
+    (step) => stepInfos[step.id]?.status === StepStatus.RUNNING,
+  );
+};