build-type: Default in derive-2.0.0

https://hackage.haskell.org/package/derive-2.0.0/derive.cabal

@hvr, any ideas what to do with that?

All version to the last https://hackage.haskell.org/package/derive-2.6.3/derive.cabal are affected