cabal-install: link top-level variant of this tool statically

The advantage is that the closure no longer depends on the version of
GHC that was used to compile the tool.

pkgs/top-level/all-packages.nix

@@ -4426,8 +4426,10 @@ in
     overrides = config.haskellPackageOverrides or (self: super: {});
   };
 
-  inherit (self.haskellPackages) ghc cabal-install;
+  inherit (self.haskellPackages) ghc;
 
+  cabal-install = haskell.lib.disableSharedExecutables haskellPackages.cabal-install;
+   
   stack = haskell.lib.overrideCabal haskellPackages.stack (drv: {
     enableSharedExecutables = false;
     isLibrary = false;