Upsetjs-jupyter-widget

* docs: fix building (a062583)
* build(deps): switch to 3.9 (f63ab63)
* build(deps): add other doc dependencies (c385310)
* ci: use yarn1 (1cc4563)
* fix(lint): linting fixes (6b051e3)
* build(deps): add pytest-cov (1228f09)
* ci: enforce yarn run (947a6fc)
* ci: switch to anaconda (aed7477)
* ci: update to python 3.8 (11ac62e)
* build(deps): update dependencies (79c998c)
* chore: update license year (317b8d6)
* build: update dependencies (bec2f35)
* build: update packages (22f60df)
* build: fix github action (e801fda)
* build: fix github action (5727c8c)
* build: udpate dependencies (cefb384)
* chore: update deps (cc33e0e)
* add dependabot (89a53e6)
* fix corner case and improve docu (8983939)

* support for venn diagrams with 4 and 5 sets
* add Karnaugh Maps as yet another way to visualize set intersections

Highlights

Highlights
* synced with upsetjs v1.3
* added color support -> [colors.ipynb](https://upset.js.org/integrations/jupyter/colors.html)
* added venn and euler diagrams -> [venn.ipynb](https://upset.js.org/integrations/jupyter/venn.html)
* add new theme options: `opacity` and `has_selection_opacity` works great with custom colors
* add support for categorical/factor attributes