Update sonarqube Docker tag

This MR contains the following updates:

Package	Type	Update	Change
sonarqube	ironbank-docker	minor	9.2.4-developer -> 9.3.0-developer
sonarqube		minor	9.2.4-developer -> 9.3.0-developer
sonarqube		minor	9.2-developer -> 9.3-developer
sonarqube	stage	minor	9.2.4-developer -> 9.3.0-developer

---

Configuration

📅 Schedule: 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.

👻 Immortal: This MR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this MR, click this checkbox.

---

This MR has been generated by Renovate Bot.