Fix break due to moving Costar (#39)

Author: rhendric

src/Control/Parallel/Class.purs

@@ -12,9 +12,9 @@ import Control.Monad.Writer.Trans (mapWriterT, WriterT)
 import Control.Plus (class Plus)
 import Data.Either (Either)
 import Data.Functor.Compose (Compose(..))
+import Data.Functor.Costar (Costar(..))
 import Data.Maybe (Maybe(..))
 import Data.Newtype (class Newtype)
-import Data.Profunctor.Costar (Costar(..))
 import Data.Profunctor.Star (Star(..))
 import Effect.Class (class MonadEffect, liftEffect)
 import Effect.Ref as Ref