Log Message:
hs-bifunctors: update to 5.5.12.

5.5.12 [2022.05.07]
-------------------
* Backport an upstream GHC change which removes the default implementation of
  `bitraverse`. Per the discussion in
  https://github.com/haskell/core-libraries-committee/issues/47, this default
  implementation was completely broken, as attempting to use it would always
  result in an infinite loop.