chore(deps): update nginxinc/nginx-unprivileged docker tag to v1.25

This MR contains the following updates:

Package	Type	Update	Change
nginxinc/nginx-unprivileged	final	minor	1.23 -> 1.25
nginxinc/nginx-unprivileged		minor	1.23 -> 1.25

---

Configuration

Schedule: At any time (no schedule defined).

Automerge: Disabled by config. Please merge this manually once you are satisfied.

Rebasing: Whenever MR is behind base branch, or you tick the rebase/retry checkbox.

Ignore: Close this MR and you won't be reminded about these updates again.

---

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

---

This MR has been generated by Renovate Bot.