chore(deps): update rust crate half to 2.4

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
half	workspace.dependencies	minor	2.3 -> 2.4

---

Release Notes

starkat99/half-rs (half)

v2.4.0

Compare Source

Added

• Optional rkyv support. Fixes [#​100], by [@​comath].
• New num-traits implementations: AsPrimitive<f16> for bf16 and AsPrimitive<bf16> for
  f16, allowing lossy conversions between the two types. By [@​charles-r-earp].
• Cargo.lock added to vcs as is now recommended for library crates.

Fixed

• Remove some unit NaN conversion sign tests due to non-deterministic hardware. Fixes [#​103].
• Redundant import warnings on nightly Rust.

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), 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.

---

• If you want to rebase/retry this PR, check this box

---

This PR has been generated by Mend Renovate. View repository job log here.

[github-actions]

GNU testsuite comparison:

Skipping an intermittent issue tests/tail/inotify-dir-recreate (passes in this run but fails in the 'main' branch)