Update Node.js to v18

[renovate[bot]]

This PR contains the following updates:

Package	Type	Update	Change
node	final	major	6-alpine -> 18-alpine
node	final	major	16 -> 18
node	final	major	9 -> 18

---

Release Notes

nodejs/node

### [`v18`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2015-08-18-Version-310-Fishrock123) Moved to doc/changelogs/CHANGELOG_IOJS.md#​3.1.0. ### [`v17`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2015-11-17-Version-510-Stable--Fishrock123) Moved to doc/changelogs/CHANGELOG_V5.md#​5.1.0. ### [`v16`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-05-06-Version-01214-Maintenance--rvagg) Moved to doc/changelogs/CHANGELOG_V012.md#​0.12.14. ### [`v15`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2015-12-23-Version-424-Argon-LTS--jasnell) Moved to doc/changelogs/CHANGELOG_V4.md#​4.2.4. ### [`v14`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-05-06-Version-01214-Maintenance--rvagg) Moved to doc/changelogs/CHANGELOG_V012.md#​0.12.14. ### [`v13`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-03-31-Version-01213-LTS--rvagg) Moved to doc/changelogs/CHANGELOG_V012.md#​0.12.13. ### [`v12`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-05-06-Version-01214-Maintenance--rvagg) Moved to doc/changelogs/CHANGELOG_V012.md#​0.12.14. ### [`v11`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-05-05-Version-5111-Stable--evanlucas) Moved to doc/changelogs/CHANGELOG_V5.md#​5.11.1. ### [`v10`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-05-06-Version-01045-Maintenance--rvagg) Moved to doc/changelogs/CHANGELOG_V010.md#​0.10.45. ### [`v9`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-03-23-Version-591-Stable--Fishrock123) Moved to doc/changelogs/CHANGELOG_V5.md#​5.9.1. ### [`v8`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-03-08-Version-580-Stable--Fishrock123) Moved to doc/changelogs/CHANGELOG_V5.md#​5.8.0. ### [`v7`](https://togithub.com/nodejs/node/blob/HEAD/CHANGELOG.md#​2016-03-02-Version-571-Stable--Fishrock123) Moved to doc/changelogs/CHANGELOG_V5.md#​5.7.1.

---

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 these updates again.

---

• [ ] If you want to rebase/retry this PR, click this checkbox.

---

This PR has been generated by Mend Renovate. View repository job log here.