doom purge should respect value of :depth in straight recipe when regrafting

### What did you expect to happen?

I have the following recipe in my packages.el file:

```
(package! org-pomodoro-third-time
:recipe (:host github :repo "telotortium/org-pomodoro-third-time"
:fork (:host nil :repo "git@github.com:telotortium/org-pomodoro-third-time")
:depth full))
```

When I run `doom sync -up`, I expect most packages to be regrafted to `HEAD`, since my value of `straight-vc-git-default-clone-depth` is `(1 single-branch)`. However, for packages with `:depth full`, I expect all commits to be present in the cloned repository.

### What actually happened?

`doom purge` (which I was running via `doom sync -up`) is [unconditionally running `git replace --graft HEAD`](https://github.com/hlissner/doom-emacs/blob/f73ae8eee176b46fc8d02d8702d2da9bc25b3472/core/cli/packages.el#L524), no matter the value of `:depth`, unless I run `doom purge -g` instead.

I would expect `doom purge` to respect the value of `:depth` in the straight recipe.

### Describe your attempts to resolve the issue

_No response_

### Steps to reproduce

See above.

### System Information

https://pastebin.com/Fhhd3GAS