Update nixpkgs to release-23.11

Author: chives101

flake.lock

@@ -2,7 +2,7 @@
   description = "THE MIMBLEWIMBLE BLOCKCHAIN.";
 
   inputs = {
-    nixpkgs.url = "github:NixOS/nixpkgs/release-22.11";
+    nixpkgs.url = "github:NixOS/nixpkgs/release-23.11";
   };
 
   outputs = { self, nixpkgs, }:
@@ -20,17 +20,16 @@
         {
           grin = pkgs.rustPlatform.buildRustPackage {
             pname = "grin";
-            version = "5.2.0-alpha.2";
+            version = "5.2.0";
             src = ./.;
 
             cargoLock = {
               lockFile = ./Cargo.lock;
             };
 
-            nativeBuildInputs = [ pkgs.llvmPackages_latest.clang ];
+            nativeBuildInputs = [ pkgs.clang ];
             buildInputs = [ pkgs.ncurses ];
-            LIBCLANG_PATH =
-              "${pkgs.llvmPackages_latest.libclang.lib}/lib";
+            LIBCLANG_PATH = "${pkgs.libclang.lib}/lib";
 
             # do not let test results block the build process
             doCheck = false;