Update graphviz to latest version

[Nazar Mokrynskyi]

I'd like to request maintainer to update Graphviz in Ubuntu since the version shipped has a significant issue that prevents opening of many of dot files and it was already fixed upstream a while ago: https://gitlab.com/graphviz/graphviz/-/issues/165

[David Huggins-Daines (dhuggins)]

Indeed. The version in Ubuntu/Debian is now over three years (and six major versions) old.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[David Huggins-Daines (dhuggins)]

Delete "me too" comment that was me-tooing myself and perhaps too flamey.

But the question remains...

At the very least you (or Debian) could upgrade to 2.42.4, released (checks calendar) four years ago, which fixes a bunch of bugs and is not even a *minor* release: https://forum.graphviz.org/t/graphviz-version-2-42-4-has-been-released/17

It's pretty hard to find it on Graphviz website/gitlab (because, like, four years!) but here, I found it: https://gitlab.com/graphviz/graphviz/-/releases/2.42.4