[CI] Use pre-release instead of nightly (#474)

Author: amontoison

.github/workflows/ci.yml

@@ -26,15 +26,15 @@ jobs:
             os: macos-latest
             arch: arm64
             allow_failure: false
-          - version: 'nightly'
+          - version: 'pre'
             os: ubuntu-latest
             arch: x64
             allow_failure: true
-          - version: 'nightly'
+          - version: 'pre'
             os: windows-latest
             arch: x64
             allow_failure: true
-          - version: 'nightly'
+          - version: 'pre'
             os: macos-13
             arch: x64
             allow_failure: true

src/CUTEst.jl

@@ -34,7 +34,7 @@ isdir(libsif_path) || mkpath(libsif_path)
 function __init__()
   if !Sys.iswindows()
     # gfortran is installed with an artifact on Windows
-    if !success(`bash -c "type gfortran"`)
+    if Sys.which("gfortran") |> isnothing
       error("gfortran is not installed. Please install it and try again.")
     else
       arch_julia = String(Sys.ARCH)