Update Rust crate tokio to v1.43.1 [SECURITY] (#36255)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [tokio](https://tokio.rs) ([source](https://redirect.github.com/tokio-rs/tokio)) | dependencies | patch | `1.43.0` -> `1.43.1` |
| [tokio](https://tokio.rs) ([source](https://redirect.github.com/tokio-rs/tokio)) | workspace.dependencies | patch | `1.43.0` -> `1.43.1` |

### GitHub Vulnerability Alerts

#### [GHSA-rr8g-9fpq-6wmg](https://redirect.github.com/tokio-rs/tokio/pull/7232)

The broadcast channel internally calls `clone` on the stored value when receiving it, and only requires `T:Send`. This means that using the broadcast channel with values that are `Send` but not `Sync` can trigger unsoundness if the `clone` implementation makes use of the value being `!Sync`.

Thank you to Austin Bonander for finding and reporting this issue.

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### Release Notes

<details>
<summary>tokio-rs/tokio (tokio)</summary>

### [`v1.43.1`](https://redirect.github.com/tokio-rs/tokio/compare/tokio-1.43.0...tokio-1.43.1)

[Compare Source](https://redirect.github.com/tokio-rs/tokio/compare/tokio-1.43.0...tokio-1.43.1)

</details>

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GitOrigin-RevId: 20fe134eb90a497f6f1131baa4fc7043d7b0ed20

Author: convex-renovate-runner[bot]