Limit to Julia version 1 for now

Author: omus

.github/workflows/ci.yml

@@ -20,10 +20,10 @@ jobs:
       fail-fast: true
       matrix:
         version:
-          - "1.0"
-          - "1.6" # Long-term support (LTS) release of Julia
+          # - "1.0"
+          # - "1.6" # Long-term support (LTS) release of Julia
           - "1" # automatically expands to the latest stable 1.x release of Julia
-          - nightly
+          # - nightly
         os:
           - ubuntu-latest
           - macOS-latest