Update Rust crate async-broadcast to v0.7.2 (#22424)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [async-broadcast](https://redirect.github.com/smol-rs/async-broadcast)
| dependencies | patch | `0.7.1` -> `0.7.2` |

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### Release Notes

<details>
<summary>smol-rs/async-broadcast (async-broadcast)</summary>

###
[`v0.7.2`](https://redirect.github.com/smol-rs/async-broadcast/blob/HEAD/CHANGELOG.md#Version-072)

[Compare
Source](https://redirect.github.com/smol-rs/async-broadcast/compare/0.7.1...0.7.2)

- Add `Sender::broadcast_blocking` and `Receiver::recv_blocking`.
[#&#8203;41](https://redirect.github.com/smol-rs/async-broadcast/issues/41)
- Use `Mutex` instead of `RwLock` for securing the inner data.
[#&#8203;42](https://redirect.github.com/smol-rs/async-broadcast/issues/42)
-   Many non-user-facing internal improvements and fixes.

</details>

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Release Notes:

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