Icon request: mini carets
**Describe the requested icon(s)**

I'd like to see mini versions of the `caret` icons, specifically for use in buttons, dropdown buttons, and select UIs. The current `caret-down` `-up` `-left` `-right` have their place I'm sure. But when used as an ornament within a button, dropdown button, or select they just look a little oversized. Of course one could size down and up the weight of the icon in these particular use cases, but I think most folks typically use icons at the same size/weight across a site or app, and adjusting for specific cases would cause some unnecessary complexity.

**References**

I've included a screenshot using the `caret-down` icon from a variety of sets within a dropdown button (all at 20px x 20px), and you can see the Phosphor icon appears quite a bit larger. I would argue that Google Material's is too small, while Feather and Heroicons feel pretty nice.

<img width="1181" alt="Screenshot 2024-06-13 at 2 07 17 PM" src="https://github.com/phosphor-icons/homepage/assets/22896970/9cadcc01-3b19-4c14-b25c-013bd07c1a3c">

**Additional context**

Heroicons actually includes a "mini" version of their entire icon set (the mini version of the caret-down is what you see in that screenshot above). I'm not suggesting that, but I think the carets would really benefit from mini versions.
