Make cabal-install depend on transformers directly

Author: phadej

cabal-install/cabal-install.cabal

@@ -331,6 +331,7 @@ executable cabal
         stm        >= 2.0      && < 2.6,
         tar        >= 0.5.0.3  && < 0.6,
         time       >= 1.5.0.1  && < 1.10,
+        transformers >= 0.4.2.0 && < 0.6,
         zlib       >= 0.5.3    && < 0.7,
         hackage-security >= 0.5.2.2 && < 0.6,
         text       >= 1.2.3    && < 1.3,

cabal-install/cabal-install.cabal.pp

@@ -41,6 +41,7 @@
         stm        >= 2.0      && < 2.6,
         tar        >= 0.5.0.3  && < 0.6,
         time       >= 1.5.0.1  && < 1.10,
+        transformers >= 0.4.2.0 && < 0.6,
         zlib       >= 0.5.3    && < 0.7,
         hackage-security >= 0.5.2.2 && < 0.6,
         text       >= 1.2.3    && < 1.3,