Use goldenVsString

Using goldenVsStringDiff creates problems with CI trying to locale
`gargantext-cli -- golden-file-diff`.
4 jobs for adinapoli/issue-355 in 27 minutes and 24 seconds (queued for 1 minute and 28 seconds)
latest
Status Job ID Name Coverage
  Cabal
passed #13694
cabal

00:09:48

 
  Stack
passed #13695
stack

00:03:12

 
  Bench
manual #13696
allowed to fail manual
bench
 
  Test
passed #13697
test

00:14:23