build(deps-dev): update dependency karma to v6.4.3

[renovate[bot]]

This PR contains the following updates:

Package	Change	Age	Adoption	Passing	Confidence
karma (source)	6.4.2 -> 6.4.3

---

Release Notes

karma-runner/karma (karma)

### [`v6.4.3`](https://togithub.com/karma-runner/karma/blob/HEAD/CHANGELOG.md#643-2024-02-24) [Compare Source](https://togithub.com/karma-runner/karma/compare/v6.4.2...v6.4.3) ##### Bug Fixes - add build commits for patch release ([d7f2d69](https://togithub.com/karma-runner/karma/commit/d7f2d69ff41a5811552412080519b1984ff48669))

---

Configuration

📅 Schedule: Branch creation - "at 9:00 am on the 1-7 day of the month on Saturday" in timezone Europe/Madrid, 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.