Add metrics related to virtual threads#9619

Merged

tjquinno merged 2 commits intohelidon-io:mainfrom

tjquinno:4.x-jfr-vthread-metrics

Jan 3, 2025

Commits on Jan 2, 2025

Add meter for platform thread starts; update copyright to 2025; remove file unchanged except for copyright date
tjquinno
committed
Update mp-1 test to expect 1 timer (instead of 0) in the base scope because the virtual threads recentPinned meter is now a timer
tjquinno
committed