I'm trying to install graphviz on 18.04 but when I try to install it it says it is unavailable, despite being listed as having been released for 18.04: https://www.ubuntuupdates.org/package/core/bionic/universe/base/graphviz
I ran apt-get update and it is still missing from the repos. Does anyone know where to find it, or a PPA I could add to install it from?