code: @Service
      public String rerunWorkflow(String workflowId, RerunWorkflowRequest request) {
          request.setReRunFromWorkflowId(workflowId);
          return workflowExecutor.rerun(request);
      }
docs: Reruns the workflow from a specific task.
  
  @param workflowId WorkflowId of the workflow you want to rerun.
  @param request    (@link RerunWorkflowRequest) for the workflow.
  @return WorkflowId of the rerun workflow.