[CI] LongFieldMapperTests testSyntheticSource failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #10256 / rocky-9_platform-support-unix
• elasticsearch-pull-request #87720 / part-1

Reproduction Line:

./gradlew ":server:test" --tests "org.elasticsearch.index.mapper.LongFieldMapperTests.testSyntheticSource" -Dtests.seed=654A70A69C8AD8DA -Dtests.locale=es-PA -Dtests.timezone=US/Eastern -Druntime.java=24

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

java.lang.AssertionError: 
Expected: "{\"field\":2493405358535454720}"
     but: was "{\"field\":2493405358535454700}"

Issue Reasons:

• [main] 2 failures in test testSyntheticSource (1.1% fail rate in 182 executions)

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

[elasticsearchmachine]

This has been muted on branch main

Mute Reasons:

• [main] 2 failures in test testSyntheticSource (1.1% fail rate in 182 executions)

Build Scans:

• elasticsearch-periodic-platform-support #10256 / rocky-9_platform-support-unix
• elasticsearch-pull-request #87720 / part-1

[elasticsearchmachine]

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

[smalyshev]

Should be fixed now by #133423