clan-cli: add git.commit_file() to auto commit files if inside a git

- commit only if inside a git repo
- commit only the specified file and nothing else
- auto-generate commit message if not specified

pkgs/clan-cli/flake-module.nix

@@ -12,15 +12,17 @@
 
       ## Optional dependencies for clan cli, we re-expose them here to make sure they all build.
       inherit (pkgs)
+        age
         bash
         bubblewrap
+        git
         openssh
-        sshpass
-        zbar
-        tor
-        age
         rsync
-        sops;
+        sops
+        sshpass
+        tor
+        zbar
+        ;
       # Override license so that we can build zerotierone without
       # having to re-import nixpkgs.
       zerotierone = pkgs.zerotierone.overrideAttrs (_old: { meta = { }; });