Update to our latest version of IGraph

Our IGraph library was updated to fix [this issue](haskell-igraph#5).
4 jobs for glocqueville/update-igraph in 43 minutes and 38 seconds (queued for 40 minutes and 10 seconds)
latest
Status Job ID Name Coverage
  Cabal
passed #18186
cabal

00:18:31

 
  Stack
passed #18187
stack

00:03:39

 
  Bench
manual #18188
allowed to fail manual
bench
 
  Test
passed #18189
test

00:21:27