Update aleksanderbl/pihole-unbound Docker tag to v2024.03.1

[renovate[bot]]

This PR contains the following updates:

Package	Update	Change
aleksanderbl/pihole-unbound	minor	2024.02.2 -> 2024.03.1

---

Release Notes

pi-hole/docker-pi-hole (aleksanderbl/pihole-unbound)

### [`v2024.03.1`](https://togithub.com/pi-hole/docker-pi-hole/releases/tag/2024.03.1) [Compare Source](https://togithub.com/pi-hole/docker-pi-hole/compare/2024.02.2...2024.03.1) New tag to include core hotfix 5.18.1 #### What's Changed Core v5.18.1 - Remove double quotes that prevented *any* local files from being read by gravity by [@​PromoFaux](https://togithub.com/PromoFaux) in [https://github.com/pi-hole/pi-hole/pull/5617](https://togithub.com/pi-hole/pi-hole/pull/5617) **Full Changelog**: https://github.com/pi-hole/pi-hole/compare/v5.18...v5.18.1

---

Configuration

📅 Schedule: Branch creation - "after 10pm every weekday,before 5am every weekday,every weekend" in timezone Europe/Copenhagen, 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.