Log Message:
Update to distributive-0.6.2.1

0.6.2.1 [2020.12.30]
* The build-type has been changed from Custom to Simple. To achieve
  this, the doctests test suite has been removed in favor of using
  cabal-docspec to run the doctests.

0.6.2 [2020.04.10]
* Make the Distributive instance for Tagged poly-kinded.