Update nginx Docker tag to v1.29.3

[renovate[bot]]

trafficstars

This PR contains the following updates:

Package	Type	Update	Change
nginx	final	patch	1.29.2-alpine-otel -> 1.29.3-alpine-otel

---

Configuration

📅 Schedule: Branch creation - Between 12:00 AM and 03:59 AM ( * 0-3 * * * ) in timezone America/Los_Angeles, Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR is behind base branch, 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 was generated by Mend Renovate. View the repository job log.