package(deps): update container dependencies

[renovate]

This PR contains the following updates:

Package	Type	Update	Change
docker.io/busybox		digest	37f7b37 → e226d63
docker.io/library/node	final	minor	20.19.1-bookworm-slim → 20.20.0-bookworm-slim
docker.io/louislam/uptime-kuma	stage	patch	1.23.16-debian → 1.23.17-debian
louislam/uptime-kuma		patch	1.23.16 → 1.23.17
quay.io/k3rnel-pan1c/uptime-kuma		pinDigest	→ 600aefa

---

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.

👻 Immortal: This PR will be recreated if closed unmerged. Get config help if that's undesired.

---

• If you want to rebase/retry this PR, check this box

---

This PR was generated by Mend Renovate. View the repository job log.