Add plotly plot for shape

[SCiarella]

This PR closes #315 implementing the shape plot using plotly, like this:

Testing is also implemented.

Notice that I have also set the requirement for pytest>=8.1 because of some rounding errors that make the plotly test fail.

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Before merging this PR, it is still needed to check if

• [ ] the new plotly plot works for more complex configurations
• [ ] it accommodates all the operation performed in this example

This can be fulfilled following this link and testing the notebook with the correct input data.

[SCiarella]

I have implemented the suggested changes, in particular:

• now the API is consistent using bins in both cases
• the axis has been fixed

I have not improved however the loop because I can not identify an obvious solution either.

Before finalizing this PR, I would like to test using the same data used here. @stefsmeets Can you share them?

[stefsmeets]

Nice work! 🚀

[stefsmeets]

Now we have all the plots for both matplotlib and plotly 😁