Colorbar is not showing last tick

Hi,
I have added a horizontal colorbar to a heatmap figure and can't get the last tick to show. Here are some of things I tried and thought are the most logical:

colorbar= dict(
            orientation='h',
            y=1.01,
            tickformat=".0%",
            tickmode='array',
            tickvals=[0, 0.25, 0.5, 0.75, 1],
            showticksuffix='last',
            ), 

and

colorbar= dict(
            orientation='h',
            y=1.01,
            tickformat=".0%",
            tickmode='linear',
            tick0=0,
            dtick=0.25,
            nticks=5,
            ticklabeloverflow="allow",
            ), 

but both yield the same result:

I have also tried moving the bar around the x axis and played with labels and length, but it always seems missing.

Is this a bug?

Plotly: 5.24.1 and Python: 3.12.7

Reproduisez la colorbar horizontale de la heatmap avec les configurations fournies tickmode='array' et tickmode='linear' en utilisant Plotly 5.24.1 et Python 3.12.7. Suivez la manière dont la colorbar gère le dernier tick et vérifiez la correction en confirmant que le libellé du tick 1.0 est rendu sans affecter les autres libellés.