Update python-jupyterlab-widgets to version 3.0.8 / rev 6 via SR 1104766
https://build.opensuse.org/request/show/1104766
by user bnavigator + dimstar_suse
- Update to 3.0.8
* no own release notes, see ipywidgets 8.1:
- Allow CSS variables to be used as values in the Color trait
by @nurbo in #3796
- Require python for js files to work (forwarded request 1104763 from bnavigator)