Update to exceptions-0.10.4

0.10.4 [2019.12.26]
* Allow building with template-haskell-2.16.*.
* Only depend on transformers-compat on old versions of GHC.

0.10.3 [2019.08.27]
* MonadThrow instance for the strict ST monad.

0.10.2 [2019.05.02]
* Allow building with base-4.13/template-haskell-2.15.

0.10.1 [2019.03.26]
* Define a MonadFail instance for CatchT.
* Allow QuickCheck-2.13 in the test suite.

0.10.0
* Fix a regression in 0.9.0 whereby the non-IO effects in bracket's
  use action were not visible to the release action, and the non-IO
  effects in the release action were not visible after the bracket
  call.
* The type of generalBracket was changed in order to restore those
  non-IO effects, so if you are a library author that provides a
  MonadMask instance, you will need to update your implementation of
  this method.
* Add MonadMask instance for MaybeT
* Add onError function whose action also runs on errors which are not
  exceptions, such as a Nothing or a Left.

0.9.0
* Add generalBracket to the MonadMask typeclass, allowing more valid
  instances.
* Note that functions such as bracket and finally are now based off of
  generalBracket, so if you are a library author that provides a
  MonadMask instance, you will need to provide an implementation of
  this method.
* Add MonadMask instances for ExceptT and ErrorT

0.8.3
* MonadCatch and MonadMask instances for Either SomeException

0.8.1
* Support for throwing in the template-haskell Q monad
* Support for transformers 0.5

0.8.0.1
* Resolved warnings on GHC 7.10 and with transformers 0.4.

0.8
* Use transformers-compat to allow support for ExceptT even on older
  transformers versions.

0.7
* stm support


(pho)