Oh I see, try the following to get a list of all pipelines, then with the selected pipeline you can locate the component:

pipeline_project = Task.current_task().project

pipelines_ids = Task.query_tasks(task_filter=dict(
                project=[pipeline_project],
                type=["controller"],
                system_tags=["pipeline"],
                order_by=["-last_change"],
                search_hidden=True,)
            )
# take the second to the last updated one (becuase the last one is us)
pipeline_id = pipelines_ids[1]

# get all components, or select the one that is you based on name?
components_ids = Task.query_tasks(task_filter=dict(
                project=[pipeline_project], parent=pipeline_id)
)

# 

I might have some typos here., but it should generally work