bump ArnolidMethod

[etiennedeg]

closes #202

[j-fu]

Thanks for this PR ! Would really appreciate to see this accepted.

[newptcai]

This has stopped update Graphs.jl. Hope this can be fixed and merged.

[simonschoelly]

Failing tests might be related to JuliaPlots/VisualRegressionTests.jl#30.

[simonschoelly]

It looks like we are trying to open a popup when the tests are not run on travis, e.g.

GraphPlot.jl/test/runtests.jl

Line 67 in 3a7daa0

@test test_images(VisualTest(plot_and_save1, refimg1), popup=!istravis) |> save_comparison |> success

But we are not running these tests on travis anymore, so we might change that.

[simonschoelly]

The right env variable might be GITHUB_ACTIONS https://stackoverflow.com/questions/73973332/check-if-were-in-a-github-action-travis-ci-circle-ci-etc-testing-environme#answer-73973555

[simonschoelly]

Superseded by #212