math/hs-free: Update to 5.2

5.2 [2023.03.12]
* Drop support for GHC 7.10 and earlier.
* Drop redundant Monad constraints on many functions and instances. These
  constraints were only present for compatibility with pre-7.10 versions of
  GHC, which free no longer supports.
* Add Eq, Eq1, Ord, Ord1, and Foldable instances for Ap in
  Control.Applicative.Free.
* Switch out bifunctors dependency for bifunctor-classes-compat.

(pho)