ocamlPackages.encore: 0.8 -> 0.8.1 (#414532)

* ocamlPackages.encore: 0.8 -> 0.8.1
Diff: https://github.com/mirage/encore/compare/v0.8...v0.8.1
Changelog: https://github.com/mirage/encore/releases/tag/v0.8.1

* ocamlPackages.encore: modernized derivation
- Removed duneVersion
- Added longDescription and changelog

pkgs/development/ocaml-modules/encore/default.nix

@@ -10,17 +10,15 @@
 
 buildDunePackage rec {
   pname = "encore";
-  version = "0.8";
+  version = "0.8.1";
 
-  minimalOCamlVersion = "4.08";
+  minimalOCamlVersion = "4.07";
 
   src = fetchurl {
-    url = "https://github.com/mirage/encore/releases/download/v${version}/encore-v${version}.tbz";
-    sha256 = "a406bc9863b04bb424692045939d6c170a2bb65a98521ae5608d25b0559344f6";
+    url = "https://github.com/mirage/encore/releases/download/v${version}/encore-${version}.tbz";
+    hash = "sha256-qg6heSBc6OSfb7vZxEi4rrKh+nx+ffnsCfVvhVR3yY0=";
   };
 
-  duneVersion = "3";
-
   propagatedBuildInputs = [
     angstrom
     fmt
@@ -32,6 +30,12 @@ buildDunePackage rec {
   meta = {
     homepage = "https://github.com/mirage/encore";
     description = "Library to generate encoder/decoder which ensure isomorphism";
+    longDescription = ''
+      Encore is a little library to provide an interface to generate an angstrom decoder and
+      an internal encoder from a shared description. The goal is to ensure a dual isomorphism
+      between them.
+    '';
+    changelog = "https://raw.githubusercontent.com/mirage/encore/refs/tags/v${version}/CHANGES.md";
     license = lib.licenses.mit;
     maintainers = [ lib.maintainers.vbgl ];
   };