feat(reuse): Switch to an action rather than a git hook, to be less cumbersome

.forgejo/workflows/reuse-check.yaml

@@ -0,0 +1,12 @@
+###
+# This file was automatically generated with nix-actions.
+jobs:
+  pre-commit:
+    runs-on: nix
+    steps:
+    - uses: actions/checkout@v3
+    - uses: https://github.com/fsfe/reuse-action@v5
+name: Run pre-commit on all files
+on:
+- push
+- pull_request

default.nix

@@ -44,12 +44,6 @@ let
         package = pkgs.nixfmt-rfc-style;
       };
 
-      reuse = nix-reuse.hook {
-        enable = true;
-        stages = [ "pre-push" ];
-        package = pkgs.reuse; # git-hooks.nix is lagging on nixpkgs update
-      };
-
       commitizen.enable = true;
     };
   };

workflows/reuse-check.nix

@@ -0,0 +1,19 @@
+# SPDX-FileCopyrightText: 2024 Tom Hubrecht <tom.hubrecht@dgnum.eu>
+#
+# SPDX-License-Identifier: EUPL-1.2
+
+{
+  name = "Run pre-commit on all files";
+  on = [
+    "push"
+    "pull_request"
+  ];
+
+  jobs.pre-commit = {
+    runs-on = "nix";
+    steps = [
+      { uses = "actions/checkout@v3"; }
+      { uses = "https://github.com/fsfe/reuse-action@v5"; }
+    ];
+  };
+}