Update Rust crate futures to v0.3.30 (zed-industries#15575)

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This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [futures](https://rust-lang.github.io/futures-rs)
([source](https://togithub.com/rust-lang/futures-rs)) |
workspace.dependencies | patch | `0.3.28` -> `0.3.30` |

---

### Release Notes

<details>
<summary>rust-lang/futures-rs (futures)</summary>

###
[`v0.3.30`](https://togithub.com/rust-lang/futures-rs/blob/HEAD/CHANGELOG.md#0330---2023-12-24)

[Compare
Source](https://togithub.com/rust-lang/futures-rs/compare/0.3.29...0.3.30)

- Add `{BiLock,SplitStream,SplitSink,ReadHalf,WriteHalf}::is_pair_of`
([#&zed-industries#8203;2797](https://togithub.com/rust-lang/futures-rs/issues/2797))
- Fix panic in `FuturesUnordered::clear`
([#&zed-industries#8203;2809](https://togithub.com/rust-lang/futures-rs/issues/2809))
- Fix panic in `AsyncBufReadExt::fill_buf`
([#&zed-industries#8203;2801](https://togithub.com/rust-lang/futures-rs/issues/2801),
[#&zed-industries#8203;2812](https://togithub.com/rust-lang/futures-rs/issues/2812))
- Improve support for targets without atomic CAS
([#&zed-industries#8203;2811](https://togithub.com/rust-lang/futures-rs/issues/2811))
- Remove build scripts
([#&zed-industries#8203;2811](https://togithub.com/rust-lang/futures-rs/issues/2811))

###
[`v0.3.29`](https://togithub.com/rust-lang/futures-rs/blob/HEAD/CHANGELOG.md#0329---2023-10-26)

[Compare
Source](https://togithub.com/rust-lang/futures-rs/compare/0.3.28...0.3.29)

- Add `TryStreamExt::try_ready_chunks`
([#&zed-industries#8203;2757](https://togithub.com/rust-lang/futures-rs/issues/2757))
- Add `TryStreamExt::{try_all,try_any}`
([#&zed-industries#8203;2783](https://togithub.com/rust-lang/futures-rs/issues/2783))
- Add `UnboundedSender::{len,is_empty}`
([#&zed-industries#8203;2750](https://togithub.com/rust-lang/futures-rs/issues/2750))
- Fix `Sync` impl of `FuturesUnordered`
([#&zed-industries#8203;2788](https://togithub.com/rust-lang/futures-rs/issues/2788))
- Fix infinite loop caused by invalid UTF-8 bytes
([#&zed-industries#8203;2785](https://togithub.com/rust-lang/futures-rs/issues/2785))
- Fix build error with -Z minimal-versions
([#&zed-industries#8203;2761](https://togithub.com/rust-lang/futures-rs/issues/2761))

</details>

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