Merge pull request #164 from JuliaMath/vs/ci

Update CI.yml to use LTS and stable

Author: ViralBShah

.github/workflows/CI.yml

@@ -13,8 +13,8 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - '1.0'
-#          - 'nightly'
+          - '1.6'
+          - '1'
         os:
           - ubuntu-latest
           - macOS-latest