haskell-HUnit: add version 1.2.5.2
haskell-ghc-mod: update to version 1.12.4
haskell-unix-time: update to version 0.1.6
haskell-yesod-auth: update to version 1.1.6
haskell-yesod-core: update to version 1.1.8.3
haskell-ghc-mod: disable test suite to fix the build

The test suite depends on the ghc-path module, which doesn't work with
ghc-wrapper. Eventually, we'll need a solution for this problem in our Cabal
builds.