See https://hydra.nixos.org/build/81125645
`tamarin-prover' upstream has a patch to fix GHC 8.4 compilation (and
uses stack lts-12.1 now), but it's not released yet:
a08f6e4007
The build is divided in several derivations, therefore the patch had to
be splitted and rebased for `lib/term', `lib/theory' and `lib/utils' to
ensure that the patch applies properly during the `patchPhase'.
Addresses #45960
