turn off nightly test since they are broken

they can be reactivated once we make a push to support nightly

Author: KristofferC

.github/workflows/test.yml

@@ -16,7 +16,7 @@ jobs:
         julia-version:
           - '1'
           - '~1.7.0-0'
-          - 'nightly'
+          # - 'nightly'
         julia-arch:
           - 'x64'
           - 'x86'