DRAFT - Loom support

[PerfectSlayer]

What Does This Do

This PR refactors and add minor fixes to the java concurrent instrumentations:

• Refactor instrumentation per features
• Improve virtual threads tests to
  • No more use latestDep and be part of the check Gradle goal,
  • Remove duplicated class and unused latest netty dependency
• Fix test cases where thread pool is null

Motivation

Additional Notes

Jira ticket: [PROJ-IDENT]