lean4: 4.1.0 -> 4.2.0

Diff: https://github.com/leanprover/lean4/compare/v4.1.0...v4.2.0

Changelog: https://github.com/leanprover/lean4/blob/v4.2.0/RELEASES.md

pkgs/applications/science/logic/lean4/default.nix

···
 
 stdenv.mkDerivation rec {
   pname = "lean4";
-  version = "4.1.0";
+  version = "4.2.0";
 
   src = fetchFromGitHub {
     owner = "leanprover";
     repo = "lean4";
     rev = "v${version}";
-    hash = "sha256-6qbCafG0bL5KxQt2gL6hV4PFDsEMM0UXfldeOOqxsaE=";
+    hash = "sha256-56YtHCiNMP5fJoddSokEl0ws06IwetYLer4aLCnujZA=";
   };
 
   postPatch = ''