Merge pull request #80 from JuliaMath/vs/test-pre

Update CI.yml to test on pre-releases

Author: ViralBShah

.github/workflows/CI.yml

@@ -15,7 +15,7 @@ jobs:
         version:
           - '1.6'
           - '1'
-          - 'nightly'
+          - 'pre'
         os:
           - ubuntu-latest
           - windows-latest