[CI] ModelRegistryIT testGetModel failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #4415 / encryption-at-rest
• elasticsearch-periodic-platform-support #4389 / rocky-8_platform-support-unix
• elasticsearch-periodic-platform-support #4389 / rocky-9_platform-support-unix
• elasticsearch-periodic-platform-support #4389 / ubuntu-2004-aarch64_checkpart2_platform-support-arm
• elasticsearch-intake #11165 / part2
• elasticsearch-intake #11166 / part2

Reproduction Line:

./gradlew ":x-pack:plugin:inference:internalClusterTest" --tests "org.elasticsearch.xpack.inference.integration.ModelRegistryIT.testGetModel" -Dtests.seed=E95511633553BFB5 -Dtests.locale=rof -Dtests.timezone=PNT -Druntime.java=22

Applicable branches:
8.x

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

org.elasticsearch.common.ValidationException: Validation Failed: 1: [chunking_settings] Invalid value [0]. [sentence_overlap] must be a positive integer;

Issue Reasons:

• [8.x] 3 consecutive failures in test testGetModel
• [8.x] 2 consecutive failures in step part2
• [8.x] 2 consecutive failures in pipeline elasticsearch-intake
• [8.x] 6 failures in test testGetModel (7.5% fail rate in 80 executions)
• [8.x] 2 failures in step part2 (13.3% fail rate in 15 executions)
• [8.x] 2 failures in pipeline elasticsearch-intake (13.3% fail rate in 15 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] 3 failures in test testGetModel (1.3% fail rate in 223 executions)
• [main] 2 failures in step part2 (6.3% fail rate in 32 executions)
• [main] 2 failures in pipeline elasticsearch-intake (6.3% fail rate in 32 executions)

Build Scans:

• elasticsearch-intake #11074 / part2
• elasticsearch-pull-request #35921 / part-2
• elasticsearch-intake #11057 / part2

[elasticsearchmachine]

Pinging @elastic/ml-core (Team:ML)

[elasticsearchmachine]

This has been muted on branch 8.x

Mute Reasons:

• [8.x] 2 consecutive failures in test testGetModel
• [8.x] 2 consecutive failures in step part2
• [8.x] 2 consecutive failures in pipeline elasticsearch-intake
• [8.x] 2 failures in test testGetModel (3.0% fail rate in 67 executions)
• [8.x] 2 failures in step part2 (13.3% fail rate in 15 executions)
• [8.x] 2 failures in pipeline elasticsearch-intake (13.3% fail rate in 15 executions)

Build Scans:

• elasticsearch-intake #11165 / part2
• elasticsearch-intake #11166 / part2

[maxhniebergall]

I think this was fixed in c2cec39#diff-d323fbe2bfcf718f15e6a1c284722660e427ca0cead925f65e8f4eef6722eaebL71. Still need to remove the mutes.

[maxhniebergall]

#116123