Log Message:
hs-base-compat-batteries: update to 0.12.2.

## Changes in 0.12.2 [2022.08.11]
 - This coincides with the `base-compat-0.12.2` release. Refer to the
   [`base-compat` \ 
changelog](https://github.com/haskell-compat/base-compat/blob/master/base-compat/CHANGES.markdown#changes-in-0122-20220811)
   for more details.