Cabal revisions of amazonka-2.0

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

 cabal-version:   2.2 name:            amazonka version:         2.0+x-revision: 1 synopsis:        Comprehensive Amazon Web Services SDK. homepage:        https://github.com/brendanhay/amazonka bug-reports:     https://github.com/brendanhay/amazonka/issues     TypeFamilies     ViewPatterns -  build-depends:      base >=4.12 && <5+  build-depends:      base >=4.12 && <4.19  library   import:             base