Cabal revisions of semigroupoids-6

Hackage metadata revisions edit the .cabal file after upload; each diff below is one revision.

 name:          semigroupoids category:      Control, Comonads version:       6+x-revision: 1 license:       BSD2 license-file:  LICENSE author:        Edward A. Kmett  library   build-depends:-    base                >= 4.9     && < 5,+    base                >= 4.9     && < 4.18,     base-orphans        >= 0.8.4   && < 1,     bifunctors          >= 5.6     && < 6,     template-haskell    >= 0.2.11,