RFR: 8297982: Exclude vmTestbase/nsk/monitoring/stress/lowmem/ with ZGC until 8297979 is fixed

[Leonid Mesnik]

8297982: Exclude vmTestbase/nsk/monitoring/stress/lowmem/ with ZGC until 8297979 is fixed

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Commit messages:
 - 8297982: Exclude vmTestbase/nsk/monitoring/stress/lowmem/ with ZGC until 8297979 is fixed

Changes: https://git.openjdk.org/jdk/pull/11467/files
 Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=11467&range=00
  Issue: https://bugs.openjdk.org/browse/JDK-8297982
  Stats: 37 lines in 1 file changed: 37 ins; 0 del; 0 mod
  Patch: https://git.openjdk.org/jdk/pull/11467.diff
  Fetch: git fetch https://git.openjdk.org/jdk pull/11467/head:pull/11467

PR: https://git.openjdk.org/jdk/pull/11467