[Snyk] Security upgrade node from 21.7.1-alpine to 21.7.2-alpine

[Piotr1215]

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:21.7.2-alpine`, 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/piotr1215/project/9f8aa7e7-faa3-4cb4-95d6-cb4a1a889252?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/piotr1215/project/9f8aa7e7-faa3-4cb4-95d6-cb4a1a889252?utm_source=github&utm_medium=referral&page=fix-pr/settings) [//]: # 'snyk:metadata:{"prId":"7a77e12f-d892-43b6-af34-95c3d8a5e4f4","prPublicId":"7a77e12f-d892-43b6-af34-95c3d8a5e4f4","dependencies":[{"name":"node","from":"21.7.1-alpine","to":"21.7.2-alpine"}],"packageManager":"dockerfile","projectPublicId":"9f8aa7e7-faa3-4cb4-95d6-cb4a1a889252","projectUrl":"https://app.snyk.io/org/piotr1215/project/9f8aa7e7-faa3-4cb4-95d6-cb4a1a889252?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)

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