Bump Cabal/cabal-install versions to 1.19.2.

Cabal/Cabal.cabal

 name: Cabal
-version: 1.19.1
+version: 1.19.2
 copyright: 2003-2006, Isaac Jones
            2005-2011, Duncan Coutts
 license: BSD3

cabal-install/cabal-install.cabal

 Name:               cabal-install
-Version:            1.19.1
+Version:            1.19.2
 Synopsis:           The command-line interface for Cabal and Hackage.
 Description:
     The \'cabal\' command-line program simplifies the process of managing
@@ -117,7 +117,7 @@ executable cabal
         array      >= 0.1      && < 0.6,
         base       >= 4.3      && < 5,
         bytestring >= 0.9      && < 1,
-        Cabal      == 1.19.1,
+        Cabal      == 1.19.2,
         containers >= 0.1      && < 0.6,
         filepath   >= 1.0      && < 1.4,
         HTTP       >= 4000.0.8 && < 4001,