[Snyk] Security upgrade postgres from 15.3-alpine to 15.6-alpine

[yurake]

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 - kubernetes/postgres/Dockerfile We recommend upgrading to `postgres:15.6-alpine`, as this image has only 1 known vulnerabilities. To do this, merge this pull request, then verify your application still works as expected. Some of the most important vulnerabilities in your base image include: | Severity | Priority Score / 1000 | Issue | Exploit Maturity | | :------: | :-------------------- | :---- | :--------------- | |  | **614** | CVE-2023-5363
[SNYK-ALPINE318-OPENSSL-6032386](https://snyk.io/vuln/SNYK-ALPINE318-OPENSSL-6032386) | No Known Exploit | |  | **614** | CVE-2023-5363
[SNYK-ALPINE318-OPENSSL-6032386](https://snyk.io/vuln/SNYK-ALPINE318-OPENSSL-6032386) | No Known Exploit | |  | **514** | Improper Check for Unusual or Exceptional Conditions
[SNYK-ALPINE318-OPENSSL-6055795](https://snyk.io/vuln/SNYK-ALPINE318-OPENSSL-6055795) | No Known Exploit | |  | **586** | CVE-2024-0727
[SNYK-ALPINE318-OPENSSL-6191692](https://snyk.io/vuln/SNYK-ALPINE318-OPENSSL-6191692) | No Known Exploit | |  | **586** | CVE-2024-0727
[SNYK-ALPINE318-OPENSSL-6191692](https://snyk.io/vuln/SNYK-ALPINE318-OPENSSL-6191692) | No Known Exploit | --- **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/yurake/project/0b426e4d-31da-4e23-aad2-63867b1c24c5?utm_source=github&utm_medium=referral&page=fix-pr) 🛠 [Adjust project settings](https://app.snyk.io/org/yurake/project/0b426e4d-31da-4e23-aad2-63867b1c24c5?utm_source=github&utm_medium=referral&page=fix-pr/settings) [//]: # 'snyk:metadata:{"prId":"99057add-a138-4a1d-9b03-645b586c3d63","prPublicId":"99057add-a138-4a1d-9b03-645b586c3d63","dependencies":[{"name":"postgres","from":"15.3-alpine","to":"15.6-alpine"}],"packageManager":"dockerfile","projectPublicId":"0b426e4d-31da-4e23-aad2-63867b1c24c5","projectUrl":"https://app.snyk.io/org/yurake/project/0b426e4d-31da-4e23-aad2-63867b1c24c5?utm_source=github&utm_medium=referral&page=fix-pr","type":"auto","patch":[],"vulns":["SNYK-ALPINE318-OPENSSL-6032386","SNYK-ALPINE318-OPENSSL-6191692","SNYK-ALPINE318-OPENSSL-6055795"],"upgrade":["SNYK-ALPINE318-OPENSSL-6032386","SNYK-ALPINE318-OPENSSL-6032386","SNYK-ALPINE318-OPENSSL-6055795","SNYK-ALPINE318-OPENSSL-6191692","SNYK-ALPINE318-OPENSSL-6191692"],"isBreakingChange":false,"env":"prod","prType":"fix","templateVariants":["updated-fix-title","priorityScore"],"priorityScoreList":[614,586,514],"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)

[what-the-diff[bot]]

PR Summary

• Updated Base Image in Dockerfile The foundation for our project's environment setup, known as the Dockerfile, has been updated. The original base image used was an older version of Postgres (15.3), but it has now been switched to a newer version (15.6). This helps ensure we are running our service on a more up-to-date and potentially more secure platform.

[sonarcloud[bot]]

Quality Gate passed

Issues
0 New issues

Measures
0 Security Hotspots
No data about Coverage
0.0% Duplication on New Code

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[codeclimate[bot]]

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