ocamlPackages.utop: 2.1.0 -> 2.2.0

Semi-automatic update generated by https://github.com/ryantm/nixpkgs-update tools. This update was made based on information from https://repology.org/metapackage/utop/versions.

pkgs/development/tools/ocaml/utop/default.nix

···
 else
 
 stdenv.mkDerivation rec {
-  version = "2.1.0";
+  version = "2.2.0";
   name = "utop-${version}";
 
   src = fetchurl {
     url = "https://github.com/diml/utop/archive/${version}.tar.gz";
-    sha256 = "0lpfyhnm4v3xmcpac76g1px3x7na4p29w6xj2q8chqxhcw131n2y";
+    sha256 = "1414snwmqaxs1x8wbpjf6fn3jsl01hq0phrr7639xmb5vh15mgd4";
   };
 
   nativeBuildInputs = [ makeWrapper ];