Generate config documentation from `application.properties`

[nscuro]

Description

Generates config documentation from application.properties.

Leverages the GenerateConfigDocs JBang script (https://github.com/DependencyTrack/jbang-catalog/blob/main/GenerateConfigDocs.java) to generate reference documentation from the application.properties file.

This makes application.properties the single source of truth for configuration options. We no longer need to copy-paste its contents to multiple places for documentation purposes.

The documentation is re-generated automatically whenever application.properties changes.

This is already done for the Hyades project (https://github.com/DependencyTrack/hyades/blob/2f95363fbf51423876a8eb2c7f0bc55a53ba85f9/DEVELOPING.md?plain=1#L11-L61) and turned out to be useful, so backporting it here.

Addressed Issue

N/A

Additional Details

N/A

Checklist

• [x] I have read and understand the contributing guidelines
• ~This PR fixes a defect, and I have provided tests to verify that the fix is effective~
• ~This PR implements an enhancement, and I have provided tests to verify that it works as intended~
• ~This PR introduces changes to the database model, and I have added corresponding update logic~
• ~This PR introduces new or alters existing behavior, and I have updated the documentation accordingly~