Update dependencies

[jtpio]

Update to the latest jupyterlite-core, jupyterlite-pyodide-kernel and ipywidgets.

Fixes #127

[pierre-haessig]

OK thanks for the fix.

So if I understand, the secret the secret incantation to fix ipywidgets is >=8.0.0 → >=8.1.1. Or perhaps in conjunction with the fresh pyodide-kernel v0.1.2 release since in #127 I only had tested up to 0.1.1?

And on the other hand: updating JupyterLab 3.5 → 3.6 ? Safe or dangerous?

[jtpio]

So if I understand, the secret the secret incantation to fix ipywidgets is >=8.0.0 → >=8.1.1. Or perhaps in conjunction with the fresh pyodide-kernel v0.1.2 release since in #127 I only had tested up to 0.1.1?

Yes, a fix was needed in jupyterlite-pyodide-kernel because it includes a shim package for widgetsnbextension.

And on the other hand: updating JupyterLab 3.5 → 3.6 ? Safe or dangerous?

It will probably be fine, but would not bring much. JupyterLite 0.1 is built on top of JupyterLab 3.5. The main features of 3.6 are improved RTC and support for Jupyter Server 2, which do not affect JupyterLite much.