[CI] S3BlobStoreRepositoryTests testDeleteBlobs failing

[elasticsearchmachine]

Build Scans:

• elasticsearch-periodic-platform-support #7853 / ubuntu-2404-aarch64_checkpart1_platform-support-arm
• elasticsearch-periodic-platform-support #7853 / ubuntu-2004-aarch64_checkpart1_platform-support-arm
• elasticsearch-periodic-platform-support #7853 / almalinux-8-aarch64_checkpart1_platform-support-arm

Reproduction Line:

./gradlew ":modules:repository-s3:internalClusterTest" --tests "org.elasticsearch.repositories.s3.S3BlobStoreRepositoryTests.testRequestStats" -Dtests.seed=EEFEE927FD948ED3 -Dtests.locale=en-MT -Dtests.timezone=AST -Druntime.java=24

Applicable branches:
main

Reproduces locally?:
N/A

Failure History:
See dashboard

Failure Message:

org.elasticsearch.repositories.RepositoryException: [dtlx] Could not determine repository generation from root blobs

Issue Reasons:

• [main] 3 failures in test testDeleteBlobs (1.8% fail rate in 166 executions)

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

[elasticsearchmachine]

Pinging @elastic/es-distributed-coordination (Team:Distributed Coordination)