Update schemaspy-maven-plugin version to 5.4.0

[mprins]

• Update schemaspy-maven-plugin version to 5.4.0-RC1
• Update schemaspy-maven-plugin version to 5.4.0

see https://github.com/GeoDienstenCentrum/schemaspy-maven-plugin/releases/tag/schemaspy-maven-plugin-5.4.0

[codecov]

Codecov Report

✅ All modified and coverable lines are covered by tests.
✅ Project coverage is 37%. Comparing base (112b621) to head (f94b2ee).
⚠️ Report is 6 commits behind head on master.

Additional details and impacted files

@@           Coverage Diff            @@
##             master   #2643   +/-   ##
========================================
- Coverage        37%     37%   -0%     
  Complexity       74      74           
========================================
  Files           199     199           
  Lines         13551   13551           
  Branches       1431    1431           
========================================
- Hits           4906    4903    -3     
- Misses         8238    8240    +2     
- Partials        407     408    +1     

see 1 file with indirect coverage changes

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[Copilot]

Pull request overview

This PR updates the schemaspy-maven-plugin from version 5.3.1 to 5.4.0 for generating database schema documentation. Additionally, it updates developer documentation to reflect newer infrastructure requirements, including Docker 29.x, buildx 0.31.x, Docker Compose 5.x, and PostgreSQL 18 (via the 18-3.6-alpine image). These infrastructure updates align with the CI workflow configurations and the SECURITY.md file which shows Docker 29 as the runtime for the 6.0.x-SNAPSHOT release.

Changes:

• Updated schemaspy-maven-plugin version from 5.3.1 to 5.4.0
• Updated developer documentation with current Docker and PostgreSQL version requirements
• Updated example commands to use PostgreSQL 18-3.6-alpine instead of 17-3.5-alpine

Reviewed changes

Copilot reviewed 2 out of 2 changed files in this pull request and generated 1 comment.

File	Description
pom.xml	Updated schemaspy-maven-plugin version from 5.3.1 to 5.4.0 in pluginManagement section
src/site/markdown/developer-notes.md	Updated infrastructure version requirements (Docker 27.0.x→29.x, buildx 0.16.x→0.31.x, compose 2.29.x→5.x) and PostgreSQL image version (17-3.5-alpine→18-3.6-alpine) in developer setup instructions

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