CI

Add support for jupyter widgets (#350) #74

# to view logs

Run time

Learn about OS # on GitHub Actions

Job	Run time
macOS	14s
Windows	1m 57s
Ubuntu (ubuntu-latest, 3.3)	1m 8s
Ubuntu (ubuntu-latest, 3.2)	1m 47s
Ubuntu (ubuntu-latest, 3.1)	1m 50s
Ubuntu (ubuntu-latest, 3.0)	1m 47s
Ubuntu (ubuntu-latest, 2.7)	2m 27s
Ubuntu (ubuntu-latest, debug)	6h 0m 14s
	6h 11m 24s