Update scalacheck-1-14 to 3.2.0.0 (#40)

Author: scala-steward

build.sbt

@@ -27,7 +27,7 @@ lazy val exercises = (project in file("."))
       "com.chuusai"                %% "shapeless"                 % "2.3.3",
       "org.scalatest"              %% "scalatest"                 % "3.2.0",
       "org.scalacheck"             %% "scalacheck"                % "1.14.3",
-      "org.scalatestplus"          %% "scalacheck-1-14"           % "3.1.2.0",
+      "org.scalatestplus"          %% "scalacheck-1-14"           % "3.2.0.0",
       "com.github.alexarchambault" %% "scalacheck-shapeless_1.14" % "1.2.5"
     ),
     scalacOptions += "-Ymacro-annotations",