Continue with '1.6' instead of 'min' for now because of a method

ambiguity in Arrow on 1.6.0.

Author: andreasnoack

.github/workflows/ci.yml

@@ -12,7 +12,10 @@ jobs:
       fail-fast: false
       matrix:
         version:
-          - 'min'
+          # FIXME! Switch from 1.6 to 'min' once we require a higher minimum
+          # We can't switch yet as there is a method ambiguity for a depndency
+          # in version 1.6.0.
+          - '1.6'
           - 'lts'
           - '1' # automatically expands to the latest stable 1.x release of Julia
           - 'pre'