Handle CVE-2024-0553 and CVE-2024-0567

[supl]

Description

This PR upgrades the Debian package libgnutls30 to patch CVE-2024-0553 and CVE-2024-0567.

┌─────────────┬───────────────┬──────────┬────────┬───────────────────┬─────────────────┬──────────────────────────────────────────────────────────┐
│   Library   │ Vulnerability │ Severity │ Status │ Installed Version │  Fixed Version  │                          Title                           │
├─────────────┼───────────────┼──────────┼────────┼───────────────────┼─────────────────┼──────────────────────────────────────────────────────────┤
│ libgnutls30 │ CVE-2024-0553 │ HIGH     │ fixed  │ 3.7.1-5+deb11u3   │ 3.7.1-5+deb11u5 │ gnutls: incomplete fix for CVE-2023-5981                 │
│             │               │          │        │                   │                 │ https://avd.aquasec.com/nvd/cve-2024-0553                │
│             ├───────────────┤          │        │                   │                 ├──────────────────────────────────────────────────────────┤
│             │ CVE-2024-0567 │          │        │                   │                 │ gnutls: rejects certificate chain with distributed trust │
│             │               │          │        │                   │                 │ https://avd.aquasec.com/nvd/cve-2024-0567                │
└─────────────┴───────────────┴──────────┴────────┴───────────────────┴─────────────────┴──────────────────────────────────────────────────────────┘

We got the report from CI at https://github.com/scalar-labs/docker/actions/runs/9769591056/job/26969320568

It also upgrades the PostgreSQL 15 package source since the old one no longer exists.

Related issues and/or PRs

N/A

Changes made

• revised Dockerfiles

Checklist

• I have commented my code, particularly in hard-to-understand areas.
• I have updated the documentation to reflect the changes.
• Any remaining open issues linked to this PR are documented and up-to-date (Jira, GitHub, etc.).
• Tests (unit, integration, etc.) have been added for the changes.
• My changes generate no new warnings.
• Any dependent changes in other PRs have been merged and published.

[choplin]

LGTM!

[feeblefakie]

LGTM! Thank you!