Extend CI

[j-fu]

See
#39 (comment)

At least the julia side logic is realistic to be tested for CairoMakie, PyPlot, PlutoVista.

So we should go for it.

[pjaap]

I am working on this. Will push a draft tomorrow!

[j-fu]

The switch form PyPlot to CairoMakie in CI was in #15