Update Rust crate mdbook to v0.4.44 (#23856)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [mdbook](https://redirect.github.com/rust-lang/mdBook) | dependencies
| patch | `0.4.43` -> `0.4.44` |

---

### Release Notes

<details>
<summary>rust-lang/mdBook (mdbook)</summary>

###
[`v0.4.44`](https://redirect.github.com/rust-lang/mdBook/blob/HEAD/CHANGELOG.md#mdBook-0444)

[Compare
Source](https://redirect.github.com/rust-lang/mdBook/compare/v0.4.43...v0.4.44)


[v0.4.43...v0.4.44](https://redirect.github.com/rust-lang/mdBook/compare/v0.4.43...v0.4.44)

##### Added

-   Added pre-built aarch64-apple-darwin binaries to the releases.
[#&#8203;2500](https://redirect.github.com/rust-lang/mdBook/pull/2500)
-   `mdbook clean` now shows a summary of what it did.
[#&#8203;2458](https://redirect.github.com/rust-lang/mdBook/pull/2458)
- Added the `output.html.search.chapter` config setting to disable
search indexing of individual chapters.
[#&#8203;2533](https://redirect.github.com/rust-lang/mdBook/pull/2533)

##### Fixed

- Fixed auto-scrolling the side-bar when loading a page with a `#`
fragment URL.
[#&#8203;2517](https://redirect.github.com/rust-lang/mdBook/pull/2517)
-   Fixed display of sidebar when javascript is disabled.
[#&#8203;2529](https://redirect.github.com/rust-lang/mdBook/pull/2529)
-   Fixed the sidebar visibility getting out of sync with the button.
[#&#8203;2532](https://redirect.github.com/rust-lang/mdBook/pull/2532)

##### Changed

- ❗ Rust code block hidden lines now follow the same logic as rustdoc.
This requires a space after the `#` symbol.
[#&#8203;2530](https://redirect.github.com/rust-lang/mdBook/pull/2530)
- ❗ Updated the Linux pre-built binaries which requires a newer version
of glibc (2.34).
[#&#8203;2523](https://redirect.github.com/rust-lang/mdBook/pull/2523)
-   Updated dependencies
[#&#8203;2538](https://redirect.github.com/rust-lang/mdBook/pull/2538)
[#&#8203;2539](https://redirect.github.com/rust-lang/mdBook/pull/2539)

</details>

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