issues with myst sites using thebe-lite

[stevejpurves]

Describe the bug

context
When I do visit https://rowanc1.github.io/myst-lite/matplotlib

expectation
I expected jupyterlite examples to work for ipywidget

bug
But instead there are errors loading ipywidgets when in notebooks

$ jupyter-book build mybook
ERROR ...

problem
This is a problem for deploying myst sites with ipywidgets

Reproduce the bug

https://rowanc1.github.io/myst-lite/matplotlib

List your environment

this is an issue with an already deployed site

[jtpio]

It looks similar to the previous issue: #689

Unfortunately this is likely to happen after each ipywidgets release (for now at least). But for now it should be fixed in the latest version of jupyterlite-pyodide-kernel. So bumping the dependency to the latest should help.

[jtpio]

Opened #738 to bump the version