Merge pull request #548 from SciML/at/julia-versions

ci: test with `1`, `lts` and `pre` versions of julia

Author: ChrisRackauckas

.github/workflows/Tests.yml

@@ -26,6 +26,7 @@ jobs:
         version:
           - "1"
           - "lts"
+          - "pre"
         group:
           - "Core"
           - "LinearSolveHYPRE"