[BUG] DiskThresholdDeciderIT.testIndexCreateBlockIsRemovedWhenAnyNodesNotExceedHighWatermarkWithAutoReleaseEnabled flaky test

[andrross]

#6443 (comment)

REPRODUCE WITH: ./gradlew ':server:internalClusterTest' --tests "org.opensearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT.testIndexCreateBlockIsRemovedWhenAnyNodesNotExceedHighWatermarkWithAutoReleaseEnabled" -Dtests.seed=C6B411190A22D5ED -Dtests.security.manager=true -Dtests.jvm.argline="-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=64m" -Dtests.locale=ar-OM -Dtests.timezone=ROK -Druntime.java=19

org.opensearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT > testIndexCreateBlockIsRemovedWhenAnyNodesNotExceedHighWatermarkWithAutoReleaseEnabled FAILED
    java.lang.AssertionError
        at __randomizedtesting.SeedInfo.seed([C6B411190A22D5ED:7F63CA47EA88CD72]:0)
        at org.junit.Assert.fail(Assert.java:87)
        at org.junit.Assert.assertTrue(Assert.java:42)
        at org.junit.Assert.assertFalse(Assert.java:65)
        at org.junit.Assert.assertFalse(Assert.java:75)
        at org.opensearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT.lambda$testIndexCreateBlockIsRemovedWhenAnyNodesNotExceedHighWatermarkWithAutoReleaseEnabled$7(DiskThresholdDeciderIT.java:254)
        at org.opensearch.test.OpenSearchTestCase.assertBusy(OpenSearchTestCase.java:1051)
        at org.opensearch.cluster.routing.allocation.decider.DiskThresholdDeciderIT.testIndexCreateBlockIsRemovedWhenAnyNodesNotExceedHighWatermarkWithAutoReleaseEnabled(DiskThresholdDeciderIT.java:252)

/cc @RS146BIJAY

[andrross]

Another instance: #6350 (comment)

[RS146BIJAY]

Checking. Will mute this test incase unable to fix this.