Update Helm release mariadb to v19.0.3

This MR contains the following updates:

Package	Update	Change
mariadb (source)	patch	19.0.2 -> 19.0.3

---

Release Notes

bitnami/charts (mariadb)

v19.0.3

• [bitnami/mariadb] Release 19.0.3 (#​28455)

---

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 MR becomes conflicted, or you tick the rebase/retry checkbox.

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

---

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

---

This MR has been generated by Renovate Bot.