haskell.compiler.ghc8107: use libffi 3.3
This is the libffi version that GHC 8.10.7 was released with.
libffi >= 3.4 in nixpkgs is no longer getting configured with the
configure flag that enabled GHC to continue working.
See https://gitlab.haskell.org/ghc/ghc/-/issues/20051.
Fixes #324384.
Co-authored-by: sternenseemann <sternenseemann@systemli.org>
authored by doyougnu sternenseemann and committed by sternenseemann 93d765be dcb948f5