[CI] RescoreKnnVectorQueryIT testKnnRetriever failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic #8901 / release-tests
• elasticsearch-pull-request #76532 / checkpart1_release-tests
• elasticsearch-pull-request #76269 / checkpart1_release-tests

Reproduction Line:

./gradlew ":server:internalClusterTest" --tests "org.elasticsearch.search.query.RescoreKnnVectorQueryIT.testKnnRetriever" -Dtests.seed=2F3744B88C992BC -Dbuild.snapshot=false -Dtests.jvm.argline="-Dbuild.snapshot=false" -Dlicense.key=x-pack/license-tools/src/test/resources/public.key -Dtests.locale=sk-Latn-SK -Dtests.timezone=America/Juneau -Druntime.java=24

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

org.elasticsearch.index.mapper.MapperParsingException: Failed to parse mapping: Unknown vector index options type [bbq_ivf] for field [vector]

Issue Reasons:

• [main] 3 failures in test testKnnRetriever (0.5% fail rate in 567 executions)
• [main] 2 failures in step checkpart1_release-tests (33.3% fail rate in 6 executions)
• [main] 2 failures in pipeline elasticsearch-pull-request (1.2% fail rate in 167 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 testKnnRetriever (0.5% fail rate in 567 executions)
• [main] 2 failures in step checkpart1_release-tests (33.3% fail rate in 6 executions)
• [main] 2 failures in pipeline elasticsearch-pull-request (1.2% fail rate in 167 executions)

Build Scans:

• elasticsearch-periodic #8901 / release-tests
• elasticsearch-pull-request #76532 / checkpart1_release-tests
• elasticsearch-pull-request #76269 / checkpart1_release-tests

[elasticsearchmachine]

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