fix(deps): update rust crate imagequant to 4.3.0

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
imagequant (source)	dependencies	minor	4.2.2 -> 4.3.0

---

Release Notes

ImageOptim/libimagequant (imagequant)

### [`v4.3.0`](https://togithub.com/ImageOptim/libimagequant/compare/4.2.2...4.3.0) [Compare Source](https://togithub.com/ImageOptim/libimagequant/compare/4.2.2...4.3.0)

---

Configuration

📅 Schedule: Branch creation - "every 3 day" (UTC), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ 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.

[renovate[bot]]

Branch automerge failure

This PR was configured for branch automerge. However, this is not possible, so it has been raised as a PR instead.

---

• Branch has one or more failed status checks