Plotly:命令甘特图在左上角而不是左下角显示最早的项目

import plotly.graph_objects as go
from datetime import datetime

tasks = ['任务A', '任务B', '任务C', '任务D']
start_dates = [datetime(2022, 1, 1), datetime(2022, 1, 5), datetime(2022, 1, 10), datetime(2022, 1, 15)]
end_dates = [datetime(2022, 1, 3), datetime(2022, 1, 8), datetime(2022, 1, 13), datetime(2022, 1, 20)]

fig = go.Figure()

fig.update_xaxes(autorange="reversed")

for i in range(len(tasks)):
    fig.add_trace(go.Bar(
        x=[start_dates[i], end_dates[i]],
        y=[tasks[i], tasks[i]],
        orientation='h'
    ))

fig.update_layout(
    title="命令甘特图",
    xaxis_title="时间",
    yaxis_title="任务"
)

fig.show()