Update to 25.05 and add git-cliff

Signed-off-by: Noah Knegt <git@noahknegt.com>

home-manager/git/default.nix

@@ -1,6 +1,10 @@
 { pkgs, ... }:
 
 {
+  imports = [
+    ./cliff.nix
+  ];
+
   programs.git = {
     enable = true;
     package = pkgs.gitFull;
@@ -13,10 +17,10 @@
     signing = {
       key = "~/.ssh/id_ed25519.pub";
       signByDefault = true;
+      format = "ssh";
     };
 
     extraConfig = {
-      gpg = { format = "ssh"; };
       push = { autoSetupRemote  = true; };
       pull = { rebase = true; };
       fetch = { prune = true; };