[CI] TracesApmIT testApmIntegration failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #11314 / debian-12_platform-support-unix
• elasticsearch-periodic-platform-support #11242 / almalinux-8-aarch64_checkpart1_platform-support-arm

Reproduction Line:

./gradlew ":test:external-modules:test-apm-integration:javaRestTest" --tests "org.elasticsearch.test.apmintegration.TracesApmIT.testApmIntegration" -Dtests.seed=4B41EB7F1BC15FFE -Dtests.locale=nl-NL -Dtests.timezone=Africa/Niamey -Druntime.java=25

Applicable branches:
8.19

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: State is not RESPONSE (REQUEST)

Issue Reasons:

• [8.19] 2 failures in test testApmIntegration (0.5% fail rate in 406 executions)
• [8.19] 2 failures in pipeline elasticsearch-periodic-platform-support (12.5% fail rate in 16 executions)

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

[elasticsearchmachine]

Pinging @elastic/es-core-infra (Team:Core/Infra)