graphviz 2.46.0
graphviz 2.46.0

The latest release isn't available at the original URL. However, the
graphviz website download page [1] links to GitLab.

We use a git checkout for the source because the autogen.sh script looks
for a git repository to recover version information.

The livecheck block has been removed. It is no longer needed given the
GitLab URL.

[1] https://www.graphviz.org/download/source/

Closes #69916.

Signed-off-by: Jonathan Chang <b1c1d8736f20db3fb6c1c66bb1455ed43909f0d8@jonathanchang.org>
Signed-off-by: Carlo Cabrera <3ffc397d0e4bded29cb84b56167de54c01e3a55b@users.noreply.github.com>

Moisan/homebrew-core,mbcoguno/homebrew-core,cblecker/homebrew-core,stgraber/homebrew-core,mbcoguno/homebrew-core,adam-moss/homebrew-core,nbari/homebrew-core,lemzwerg/homebrew-core,sjackman/homebrew-core,spaam/homebrew-core,mfikes/homebrew-core,dsXLII/homebrew-core,sjackman/homebrew-core,nandub/homebrew-core,Homebrew/homebrew-core,Linuxbrew/homebrew-core,Moisan/homebrew-core,filcab/homebrew-core,dsXLII/homebrew-core,Homebrew/homebrew-core,stgraber/homebrew-core,makigumo/homebrew-core,uyjulian/homebrew-core,cblecker/homebrew-core,chrisfinazzo/homebrew-core,chrisfinazzo/homebrew-core,lemzwerg/homebrew-core,JCount/homebrew-core,nandub/homebrew-core,makigumo/homebrew-core,mfikes/homebrew-core,zyedidia/homebrew-core,spaam/homebrew-core,Linuxbrew/homebrew-core,uyjulian/homebrew-core,filcab/homebrew-core,mbcoguno/homebrew-core,JCount/homebrew-core,nbari/homebrew-core,zyedidia/homebrew-core,adam-moss/homebrew-core