chore(deps): update docker.io/library/alpine docker tag to v3.20

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
docker.io/library/alpine	final	minor	3.18 -> 3.20

• [x] PR contains the label that identifies the area, one of: area:provisioner, area:chart
• [ ] If the PR is targeting a Helm chart, add the chart label, e.g. chart:kubernetes-zfs-provisioner

---

Configuration

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

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

♻ 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 Mend Renovate. View repository job log here.