ci: update dependency python to v3.12.3

[sebastien-prudhomme]

This PR contains the following updates:

Package	Update	Change
python	patch	3.12.2 -> 3.12.3

---

Release Notes

actions/python-versions (python)

### [`v3.12.3`](https://togithub.com/actions/python-versions/releases/tag/3.12.3-8625548520): 3.12.3 [Compare Source](https://togithub.com/actions/python-versions/compare/3.12.2-7817845786...3.12.3-8625548520) Python 3.12.3

---

Configuration

📅 Schedule: Branch creation - At any time (no schedule defined), Automerge - At any time (no schedule defined).

🚦 Automerge: Enabled.

♻ Rebasing: Whenever PR becomes conflicted, 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 has been generated by Renovate Bot.