Update Rust crate libc to v0.2.169 (#15108)

This PR contains the following updates:

| Package | Type | Update | Change |
|---|---|---|---|
| [libc](https://redirect.github.com/rust-lang/libc) |
workspace.dependencies | patch | `0.2.168` -> `0.2.169` |

---

### Release Notes

<details>
<summary>rust-lang/libc (libc)</summary>

###
[`v0.2.169`](https://redirect.github.com/rust-lang/libc/releases/tag/0.2.169)

[Compare
Source](https://redirect.github.com/rust-lang/libc/compare/0.2.168...0.2.169)

##### Added

- FreeBSD: add more socket TCP stack constants
[#&#8203;4193](https://redirect.github.com/rust-lang/libc/pull/4193)
- Fuchsia: add a `sockaddr_vm` definition
[#&#8203;4194](https://redirect.github.com/rust-lang/libc/pull/4194)

##### Fixed

**Breaking**:
[rust-lang/rust#132975](https://redirect.github.com/rust-lang/rust/pull/132975)
corrected the signedness of `core::ffi::c_char` on various Tier 2 and
Tier 3 platforms (mostly Arm and RISC-V) to match Clang. This release
contains the corresponding changes to `libc`, including the following
specific pull requests:

- ESP-IDF: Replace arch-conditional `c_char` with a reexport
[#&#8203;4195](https://redirect.github.com/rust-lang/libc/pull/4195)
- Fix `c_char` on various targets
[#&#8203;4199](https://redirect.github.com/rust-lang/libc/pull/4199)
- Mirror `c_char` configuration from `rust-lang/rust`
[#&#8203;4198](https://redirect.github.com/rust-lang/libc/pull/4198)

##### Cleanup

- Do not re-export `c_void` in target-specific code
[#&#8203;4200](https://redirect.github.com/rust-lang/libc/pull/4200)

</details>

---

### Configuration

📅 **Schedule**: Branch creation - "before 4am on Monday" (UTC),
Automerge - At any time (no schedule defined).

🚦 **Automerge**: Disabled by config. Please merge this manually once you
are satisfied.

♻ **Rebasing**: Whenever PR becomes conflicted, or you tick the
rebase/retry checkbox.

🔕 **Ignore**: Close this PR and you won't be reminded about this update
again.

---

- [ ] <!-- rebase-check -->If you want to rebase/retry this PR, check
this box

---

This PR was generated by [Mend Renovate](https://mend.io/renovate/).
View the [repository job
log](https://developer.mend.io/github/astral-sh/ruff).

<!--renovate-debug:eyJjcmVhdGVkSW5WZXIiOiIzOS44MC4wIiwidXBkYXRlZEluVmVyIjoiMzkuODAuMCIsInRhcmdldEJyYW5jaCI6Im1haW4iLCJsYWJlbHMiOlsiaW50ZXJuYWwiXX0=-->

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

Cargo.lock

@@ -1521,9 +1521,9 @@ checksum = "e2abad23fbc42b3700f2f279844dc832adb2b2eb069b2df918f455c4e18cc646"
 
 [[package]]
 name = "libc"
-version = "0.2.168"
+version = "0.2.169"
 source = "registry+https://github.com/rust-lang/crates.io-index"
-checksum = "5aaeb2981e0606ca11d79718f8bb01164f1d6ed75080182d3abf017e6d244b6d"
+checksum = "b5aba8db14291edd000dfcc4d620c7ebfb122c613afb886ca8803fa4e128a20a"
 
 [[package]]
 name = "libcst"