[CI] GetInferenceFieldsActionRequestTests testEqualsAndHashcode failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #11425 / windows-2022_checkpart2_platform-support-windows
• elasticsearch-periodic-platform-support #11425 / ubuntu-2404-aarch64_checkpart2_platform-support-arm
• elasticsearch-periodic-platform-support #11421 / debian-13_platform-support-unix

Reproduction Line:

gradlew ":x-pack:plugin:inference:test" --tests "org.elasticsearch.xpack.inference.action.GetInferenceFieldsActionRequestTests.testEqualsAndHashcode" -Dtests.seed=93869662578770A9 -Dtests.locale=sq -Dtests.timezone=Indian/Reunion -Druntime.java=25

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: Request mutation should not be equal to original
Expected: not <org.elasticsearch.xpack.core.inference.action.GetInferenceFieldsAction$Request/unset>
     but: was <org.elasticsearch.xpack.core.inference.action.GetInferenceFieldsAction$Request/unset>

Issue Reasons:

• [main] 2 consecutive failures in test testEqualsAndHashcode
• [main] 3 failures in test testEqualsAndHashcode (8.6% fail rate in 35 executions)
• [main] 2 failures in pipeline elasticsearch-periodic-platform-support (100.0% fail rate in 2 executions)

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

[elasticsearchmachine]

Pinging @elastic/search-relevance (Team:Search - Relevance)

[dimitris-athanasiou]

Taking a look at this