request for a stability bug hotfix in ghc 8.10.{3,4}

[tscholak]

There is a thread-safety issue that is being fixed atm here, https://gitlab.haskell.org/ghc/ghc/-/merge_requests/5128/diffs. On larger projects, it causes the HLS to crash every 5 seconds, see haskell/haskell-language-server#1465.
I was wondering if it was possible to inject this hotfix into the ghc 8.10.4 derivation in haskell.nix since I'm not sure when 8.10.5 will see the light of the day.