[CI] ValuesTests testGroupingAggregate {TestCase=<<no alt geo_shape>s>} failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #11287 / sles-15_platform-support-unix
• elasticsearch-periodic-platform-support #11200 / windows-2022_checkpart3_platform-support-windows

Reproduction Line:

./gradlew ":x-pack:plugin:esql:test" --tests "org.elasticsearch.xpack.esql.expression.function.aggregate.ValuesTests.testGroupingAggregate {TestCase=<<no alt geo_shape>s>}" -Dtests.seed=C6AEE42B5C2CC65C -Dtests.locale=ln -Dtests.timezone=America/Regina -Druntime.java=25

Applicable branches:
8.19

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

org.elasticsearch.common.breaker.CircuitBreakingException: over test limit

Issue Reasons:

• [8.19] 2 failures in test testGroupingAggregate {TestCase=<s>} (0.4% fail rate in 518 executions)
• [8.19] 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.

[elasticsearchmachine]

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

[alex-spies]

@craigtaverner , I see this test case was added in the backport of #122886. I think this is medium risk as it suggests that we can run the node OOM using VALUES with spatial types; it may also be low risk because the OOM seems to happen while copying data out of the aggregator rather than during the actual aggregation, but better safe than sorry?

Do you think you could take a look?