fix(deps): update python:3.13-alpine docker digest to 51b5354

This MR contains the following updates:

Package	Type	Update	Change
python	final	digest	37b14db -> 51b5354

---

Configuration

📅 Schedule: Branch creation - Monday through Friday ( * * * * 1-5 ) in timezone Europe/London, 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.