In order to reduce the noise in the JDK21 CI, I'm ProblemListing:

java/util/concurrent/locks/Lock/OOMEInAQS.java

on linux-aarch64 with ZGC. The most recent failures
happen with both ZGC and virtual threads, but there isn't a
ProblemList for that combination. Since the test is already
ProblemListed with ZGC for windows-x64, I'm going with
adding linux-aarch64 to that entry.