Fix CompatHelper

It's not running on v1...

Author: ChrisRackauckas

.github/workflows/CompatHelper.yml

@@ -9,7 +9,7 @@ jobs:
     runs-on: ${{ matrix.os }}
     strategy:
       matrix:
-        julia-version: [1.2.0]
+        julia-version: [1]
         julia-arch: [x86]
         os: [ubuntu-latest]
     steps: