[CI] ValuesSourceReaderOperatorTests testLoadLong failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #9380 / oraclelinux-9_platform-support-unix
• elasticsearch-periodic-platform-support #9373 / rocky-9_platform-support-unix
• elasticsearch-periodic-platform-support #9310 / windows-2022_checkpart3_platform-support-windows
• elasticsearch-periodic-platform-support #9296 / rocky-8_platform-support-unix
• elasticsearch-periodic-platform-support #9261 / rhel-8_platform-support-unix

Reproduction Line:

./gradlew ":x-pack:plugin:esql:compute:test" --tests "org.elasticsearch.compute.lucene.read.ValuesSourceReaderOperatorTests.testLoadLong" -Dtests.seed=36E7063451AEAFEA -Dtests.locale=az-Cyrl -Dtests.timezone=America/Montreal -Druntime.java=24

Applicable branches:
9.1

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: 
Expected: a collection with size <1>
     but: collection size was <3>

Issue Reasons:

• [9.1] 5 failures in test testLoadLong (1.1% fail rate in 442 executions)
• [9.1] 5 failures in pipeline elasticsearch-periodic-platform-support (27.8% fail rate in 18 executions)

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

[elasticsearchmachine]

Pinging @elastic/es-analytical-engine (Team:Analytics)

[luigidellaquila]

My understanding is that this is a test issue (see #131077), @idegtiarenko correct me if I'm wrong.
I'm labeling this as low risk

[idegtiarenko]

My understanding is that this is a test issue (see #131077), @idegtiarenko correct me if I'm wrong.

That is correct