[CI] RetentionLeaseIT.testRetentionLeasesSyncOnRecovery Fails

[Tim-Brooks]

./gradlew :server:integTest \
  -Dtests.seed=293744DFE76BD608 \
  -Dtests.class=org.elasticsearch.index.seqno.RetentionLeaseIT \
  -Dtests.method="testRetentionLeasesSyncOnRecovery" \
  -Dtests.security.manager=true \
  -Dtests.locale=es-HN \
  -Dtests.timezone=America/Lima \
  -Dcompiler.java=12 \
  -Druntime.java=11

https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+matrix-java-periodic/ES_BUILD_JAVA=openjdk12,ES_RUNTIME_JAVA=zulu11,nodes=immutable&&linux&&docker/228/console

https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+matrix-java-periodic/ES_BUILD_JAVA=java11,ES_RUNTIME_JAVA=java8,nodes=immutable&&linux&&docker/228/console

https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+master+multijob-unix-compatibility/os=fedora-28/229/console

[Tim-Brooks]

I have run it and not been able to reproduce the test locally. This happens mostly on master. But I see that it did happen on 6.7. And I would assume that it has happened in between.

[elasticmachine]

Pinging @elastic/es-distributed

[dimitris-athanasiou]

Another occurrence in 6.7: https://elasticsearch-ci.elastic.co/job/elastic+elasticsearch+6.7+multijob-unix-compatibility/os=sles-12/4/console

There is an open PR for muting this: #38589