[Snyk] Security upgrade node from 18.19.1-alpine3.18 to 18.20-alpine3.18

This PR was automatically created by Snyk using the credentials of a real user.

Keeping your Docker base image up-to-date means you’ll benefit from security fixes in the latest version of your chosen image. #### Changes included in this PR - Dockerfile We recommend upgrading to `node:18.20-alpine3.18`, as this image has only 0 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected. --- **Note:** _You are seeing this because you or someone else with access to this repository has authorized Snyk to open fix PRs._ For more information: 🧐 [View latest project report](https://app.snyk.io/org/platformeng_api/project/42d50719-e02a-428a-9736-dda76349c610?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/platformeng_api/project/42d50719-e02a-428a-9736-dda76349c610?utm_source=github&utm_medium=referral&page=fix-pr/settings) [//]: # 'snyk:metadata:{"prId":"4c272647-7c52-44db-9316-d64ed5196369","prPublicId":"4c272647-7c52-44db-9316-d64ed5196369","dependencies":[{"name":"node","from":"18.19.1-alpine3.18","to":"18.20-alpine3.18"}],"packageManager":"dockerfile","projectPublicId":"42d50719-e02a-428a-9736-dda76349c610","projectUrl":"https://app.snyk.io/org/platformeng_api/project/42d50719-e02a-428a-9736-dda76349c610?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":[],"upgrade":[],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["updated-fix-title"],"priorityScoreList":[],"remediationStrategy":"vuln"}' --- **Learn how to fix vulnerabilities with free interactive lessons:** 🦉 [Learn about vulnerability in an interactive lesson of Snyk Learn.](https://learn.snyk.io/?loc=fix-pr)

snyk / sweater-comb

[Snyk] Security upgrade node from 18.19.1-alpine3.18 to 18.20-alpine3.18 #606