Updated to use scalacheck version 1.12.3.
Updated to use scalacheck version 1.12.3.

cheeseng/scalatest,scalatest/scalatest,dotty-staging/scalatest,dotty-staging/scalatest,scalatest/scalatest,scalatest/scalatest,cheeseng/scalatest,dotty-staging/scalatest,cheeseng/scalatest