Merge pull request 'update external config for usda-dash' (#15) from usda-docker into main

Reviewed-on: http://git.factory.uga.edu/UGA-Innovation-Factory/athenix/pulls/15

inventory.nix

@@ -122,7 +122,7 @@
       };
       "usda-dash" = builtins.fetchGit {
         url = "git+ssh://git@factory.uga.edu/MODEL/usda-dash-config.git";
-        rev = "d3f813f2d275ae1198dfa140ec7ba0c23bb9f35c";
+        rev = "66afa5e5722100fe1f4f034c4cc33e506f4826f7";
         submodules = true;
       };
     };