Differences in user build artifacts between v1 and v2

[smorimoto]

This has not been investigated sufficiently, so I don't know why, but there seems to be a difference in the build artifacts between v1 and v2.

v1: https://github.com/actions-ml/setup-ocaml/runs/1624300311?check_suite_focus=true
v2: https://github.com/actions-ml/setup-ocaml/runs/1624278107?check_suite_focus=true

[smorimoto]

Well, somehow this has now been resolved.