[BUG] org.opensearch.ratelimitting.admissioncontrol.AdmissionForClusterManagerIT.testAdmissionControlResponseStatus is flaky

[backslasht]

Describe the bug

See the test failure in https://build.ci.opensearch.org/job/gradle-check/36299/testReport/org.opensearch.ratelimitting.admissioncontrol/AdmissionForClusterManagerIT/testAdmissionControlResponseStatus/

Related component

Cluster Manager

To Reproduce

REPRODUCE WITH: ./gradlew ':server:internalClusterTest' --tests "org.opensearch.ratelimitting.admissioncontrol.AdmissionForClusterManagerIT.testAdmissionControlResponseStatus" -Dtests.seed=BE97CAB274817CE0 -Dtests.security.manager=true -Dtests.jvm.argline="-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=64m" -Dtests.locale=zh-Hant-TW -Dtests.timezone=Asia/Calcutta -Druntime.java=21

Expected behavior

The test should not fail.

[peternied]

[Triage - attendees 1 2 3 4 5 6 7 8]
@backslasht Thanks for filing

[shwetathareja]

@rajiv-kv can you please look into it on priority