JDK25 support Collector

[chrisrueger]

This is a collector for JDK25 which is GA released on 2025/09/16.

• Generate Files via JDK25 Early Access Release add JDK25 support #6672
• Repeat with JDK25 GA

Related links and past PRs:

• https://github.com/bndtools/bnd/blob/master/DEV_README.md#generating-jdk-properties-files
• [Java24] Create new .properties files and compiled class files #6529
• Build with JDK24 via Gradle 8.14 #6558
• #6858 add enums up to JDK50 #6891

[chrisrueger]

Merged #6672
I will keep it open until September once JDK25 is released to see if there are diffrence between JDK25 Early-Access and GA.

[chrisrueger]

Even our build now uses Java25