Verify initial Trestle pipelines against real-world examples of upstream PRs

[smlambert]

Related to https://github.com/adoptium/ci-jenkins-pipelines/issues/895 (see also https://github.com/adoptium/ci-jenkins-pipelines/wiki/Trestle-Initiative), we will test various use cases to validate the final feature set that the Trestle pipelines should deliver.

Trestle Coverage	Upstream branch	Link(s) to results	Notes
Support JDK8
Support JDK11
Support JDK17	PR	Grid	comment
Support JDK21
Support Tip (JDK23 atm)

Trestle Feature	Verify works as planned
Build 3 variants (release|fast-debug|slow-debug)
Trigger correct test sets
Builds on expected nodes
Displays properly in TRSS
Discards artifacts after X days
Access control for pipeline works
Rerun failed tests in Grinder works
Easy to find RELEASE INFO & Build Metadata