可以通过修改默认的停止信号来解决此问题，例如将默认的 SIGTERM 信号修改为 SIGINT 信号。以下是示例代码：

from google.cloud.storage import Client
from airflow.contrib.operators import GoogleSheetsToGCSOperator
import psutil
import signal


def set_signal_handler():
    def kill_process(signum, frame):
        pid = os.getpid()
        parent = psutil.Process(pid)
        children = parent.children(recursive=True)
        for child in children:
            child.send_signal(signal.SIGINT)

    signal.signal(signal.SIGTERM, kill_process)


def airflow_task():
    set_signal_handler()

    gcs_bucket = 'my-gcs-bucket'
    gcs_object = 'output.csv'
    spreadsheet_id = 'my-spreadsheet-id'
    sheet_name = 'Sheet1'
    range_name = 'A1:E'
    gcs_conn_id = 'google_cloud_storage_default'
    sheets_conn_id = 'google_sheets_default'

    client = Client()
    bucket = client.get_bucket(gcs_bucket)
    blob = bucket.blob(gcs_object)
    blob.upload_from_string('')

    sheets_to_gcs = GoogleSheetsToGCSOperator(
        task_id='sheets_to_gcs',
        spreadsheet_id=spreadsheet_id,
        sheet_name=sheet_name,
        range_name=range_name,
        gcs_bucket=gcs_bucket,
        gcs_object=gcs_object,
        gcs_conn_id=gcs_conn_id,
        sheets_conn_id=sheets_conn_id
    )

    sheets_to_gcs.execute()


if __name__ == '__main__':
    airflow_task()

以上是一个示例的代码片段，该代码将默认停止信号从 SIGTERM 修改为 SIGINT，以避免使用 GoogleSheetsToGCSOperator 时发生 Negsignal.SIGKILL 错误。