flake: update homelab-deploy, add to devShell

Update homelab-deploy to include bugfix. Add CLI to devShell for
easier testing and deployment operations.

Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>

flake.nix

@@ -225,11 +225,12 @@
         { pkgs }:
         {
           default = pkgs.mkShell {
-            packages = with pkgs; [
-              ansible
-              opentofu
-              openbao
+            packages = [
+              pkgs.ansible
+              pkgs.opentofu
+              pkgs.openbao
               (pkgs.callPackage ./scripts/create-host { })
+              homelab-deploy.packages.${pkgs.system}.default
             ];
           };
         }