Plots are not shown in the documentation with plotly v6

[DunklesArchipel]

Plots are not shown in the documentation:

https://echemdb.github.io/unitpackage/usage/unitpackage_usage.html#plotting

[DunklesArchipel]

The issue seems to be related to plotly v.6.

See: executablebooks/MyST-NB#667
The plot is also not shown on the official myst-nb documentation: https://myst-nb.readthedocs.io/en/latest/render/interactive.html#plotly

I also tried to use the following url in the config file: https://cdn.plot.ly/plotly-3.0.1.min.js

Tried also with the following lines in the plot function in unitpackage.entry.plot()

import plotly.io as pio
pio.renderers.default = 'iframe'

Suggested here: https://community.plotly.com/t/plotly-not-rendering-in-jupyterlab-just-leaving-an-empty-space/85588/6

Aside from that, it seems to be related to the figureWidget, which is also not shown on the official plotly website:
https://plotly.com/python/getting-started/#jupyterlab-support-python-35

Plots are shown on that website when using plotly express, which does not work in our case.

[DunklesArchipel]

Pinning plotly in the pyproject toml in the pixi.doc.tasks dependencies, also does not seem to work

[tool.pixi.feature.doc.dependencies]
jupytext = "*"
make = "*"
myst-parser = "*"
myst-nb = "*"
plotly = ">=5,<6"
sphinx = "*"
sphinx-design = "*"
sphinx_rtd_theme = "*"

Only when the dpendency is changed in the project dependecies

dependencies = [
    "astropy>=5,<8",
    "frictionless>=5.8.3,<6",
    "iteration_utilities>=0.13.0,<0.14.0",
    "matplotlib>=3.5.0,<4",
    "pandas>=1.3,<3",
    "plotly>=5,<6",
    "pybtex>=0.25,<0.26",
]