[CI] CrossClusterAsyncSearchIT testCancellationViaTimeoutWithAllowPartialResultsSetToFalse failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #8793 / windows-2019_checkpart2_platform-support-windows
• elasticsearch-periodic-platform-support #8709 / windows-2019_checkpart2_platform-support-windows
• elasticsearch-periodic #8682 / single-processor-node-tests

Reproduction Line:

gradlew ":x-pack:plugin:async-search:internalClusterTest" --tests "org.elasticsearch.xpack.search.CrossClusterAsyncSearchIT.testCancellationViaTimeoutWithAllowPartialResultsSetToFalse" -Dtests.seed=EB98C44C1E049E5E -Dtests.locale=kam-Latn-KE -Dtests.timezone=CST6CDT -Druntime.java=24

Applicable branches: 8.18

Reproduces locally?: N/A

Failure History: See dashboard

Failure Message:

java.lang.AssertionError: 
Expected: a value greater than <0>
     but: <0> was equal to <0>

Issue Reasons:

• [8.18] 3 failures in test testCancellationViaTimeoutWithAllowPartialResultsSetToFalse (0.5% fail rate in 586 executions)
• [8.18] 2 failures in step windows-2019_checkpart2_platform-support-windows (11.8% fail rate in 17 executions)
• [8.18] 2 failures in pipeline elasticsearch-periodic-platform-support (11.8% fail rate in 17 executions)

Note: This issue was created using new test triage automation. Please report issues or feedback to es-delivery.