fix(container): update image postgresql to v15.5.38

[renovate]

This PR contains the following updates:

Package	Update	Change
postgresql (source)	patch	15.5.28 -> 15.5.38

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Release Notes

bitnami/charts (postgresql)

v15.5.38

• [bitnami/postgresql] Release 15.5.38 (#​29681) (105fcbb), closes #​29681

v15.5.37

• [bitnami/postgresql] Release 15.5.37 (#​29660) (45cada1), closes #​29660

v15.5.36

• [bitnami/postgresql] Release 15.5.36 (#​29640) (074e377), closes #​29640

v15.5.35

• [bitnami/postgresql] Release 15.5.35 (#​29610) (1f3717a), closes #​29610

v15.5.32

• [bitnami/postgresql] test: ✅ Improve reliability of ginkgo tests (#​29472) (c43177e), closes #​29472

v15.5.31

• [bitnami/postgresql] Release 15.5.31 (#​29404) (baf9a0f), closes #​29404

v15.5.30

• [bitnami/postgresql] collect metrics as postgres user (#​29201) (7240870), closes #​29201

v15.5.29

• [bitnami/postgresql] Release 15.5.29 (#​29330) (3c161f7), closes #​29330

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[jsaveker]

Here is an automated review from ChatGPT of this pull request.

Upon analyzing the provided git diff, the focus of the change is the update of a PostgreSQL chart version from 15.5.28 to 15.5.31, as part of a Helm configuration file within a Kubernetes application deployment scenario, specifically for a Mastodon instance.

No Direct Security Issues Identified

With the given context, there are no direct security issues identifiable purely from this version change snippet. Helm chart version updates are common for various reasons, such as:

• Security patches: Newer versions might include fixes for vulnerabilities found in the older versions.
• Bug fixes and improvements: General improvements in stability, performance, etc.
• Feature updates: Adding new functionalities or support mechanisms.

Recommendations

Although no security concerns are directly visible from this diff, the following best practices should be considered to mitigate potential risks associated with version updates:

1. Verify Changelog and Security Bulletins: Before upgrading, thoroughly review the changelog and any security bulletins for the new version (15.5.31) to ensure that no new vulnerabilities are introduced and that any known vulnerabilities are indeed fixed.

2. Dependency Scanning: Utilize tools to scan dependencies for known vulnerabilities. This is useful in automated pipelines to catch potentially risky upgrades.

3. Test in a Controlled Environment: Before rolling out the upgrade in a production environment, test the new chart version in a staging environment. This helps to identify any breaking changes or compatibility issues.

4. Rollback Plan: Ensure you have a rollback plan in case the upgrade introduces issues. Knowing how to quickly revert to a known good state is crucial for maintaining service reliability.

5. Monitor after Upgrade: Following the upgrade, monitor the service closely for any unusual behavior or performance issues. Early detection of problems can minimize potential impacts.

Given the nature of Kubernetes and Helm deployments, it's also wise to keep the Kubernetes cluster itself and any Helm clients up to date, following similar guidelines for those upgrades.

In summary, the git diff itself does not introduce any direct security issues. However, the process of applying such an upgrade should be handled with care to ensure the application's security and reliability are not inadvertently compromised.