[JENA-2138] Update to Apache parent POM v24

• Type: Bug
• Status: Closed
• Priority: Major
• Resolution: Done
• Affects Version/s: Jena 4.1.0
• Fix Version/s: Jena 4.2.0
• Assignee: Andy Seaborne
• Reporter: Andy Seaborne
• Created: 01/Aug/21 15:54
• Updated: 16/Sep/21 11:26
• Resolved: 03/Aug/21 10:23

Description

This is more than change the version number.

v24 adds an enforcer rule to require "project.build.outputTimestamp" for reproducible builds (see https://maven.apache.org/guides/mini/guide-reproducible-builds.html).

This has knock-on effects on javadoc:attach-javadoc and on timestamp handling and format.