also test against Ruby 3.2 in CI

.github/workflows/checks.yml

@@ -23,6 +23,7 @@ jobs:
         - '2.7'
         - '3.0'
         - '3.1'
+        - '3.2'
     runs-on: ${{ matrix.os }}
     env:
       nixfile: "contrib/nix/ruby${{ matrix.ruby-version }}-shell.nix"

Manifest.txt

@@ -36,6 +36,7 @@ contrib/nix/ruby2.6-shell.nix
 contrib/nix/ruby2.7-shell.nix
 contrib/nix/ruby3.0-shell.nix
 contrib/nix/ruby3.1-shell.nix
+contrib/nix/ruby3.2-shell.nix
 devel/console.sh
 devel/count-loc.sh
 devel/load-index.rb

contrib/nix/ruby3.2-shell.nix

@@ -0,0 +1,14 @@
+let
+  pkgs = import (builtins.fetchGit {
+    url = "https://github.com/NixOS/nixpkgs";
+    ref = "refs/heads/master";
+    rev = "402cc3633cc60dfc50378197305c984518b30773";
+  }) {};
+  gems = pkgs.bundlerEnv {
+    name = "ruby3.2-gems-for-sup";
+    ruby = pkgs.ruby_3_2;
+    gemfile = ./Gemfile;
+    lockfile = ./Gemfile.lock;
+    gemset = ./gemset.nix;
+  };
+in pkgs.mkShell { packages = [ gems gems.wrappedRuby pkgs.pandoc ]; }

shell.nix

@@ -1 +1 @@
-contrib/nix/ruby3.1-shell.nix
+contrib/nix/ruby3.2-shell.nix