cli: Fix support for older macOS versions (#22515)

Close #22419

Release Notes:

- Fixed `zed` cli crash by `ScreenCaptureKit` library not loaded error
on macOS lower versions.

<img width="843" alt="image"
src="https://github.com/user-attachments/assets/9e0b615e-933f-4808-bf20-3e37e9e8bc6d"
/>

--- 

The main reason is the `cli` depends on `release_channel`, and it
depends on `gpui`.

```
$ cargo tree -p cli
├── release_channel v0.1.0 (/Users/jason/github/zed/crates/release_channel)
│   └── gpui v0.1.0 (/Users/jason/github/zed/crates/gpui)
│       ├── anyhow v1.0.95
│       ├── async-task v4.7.1
│       ├── block v0.1.6
│       ├── cocoa v0.26.0
```