[BUG] Multiple UTs in org.opensearch.repositories.blobstore.BlobStoreRepositoryTests are flaky

[ashking94]

Describe the bug
Encountered flaky tests in BlobStoreRepositoryTests. Below are the flaky tests -

• org.opensearch.repositories.blobstore.BlobStoreRepositoryTests.testRetrieveShallowCopySnapshotCase1
• org.opensearch.repositories.blobstore.BlobStoreRepositoryTests.testRetrieveShallowCopySnapshotCase2
• org.opensearch.repositories.blobstore.BlobStoreRepositoryTests.testGetRemoteStoreShallowCopyShardMetadata

To Reproduce
Check console output in https://build.ci.opensearch.org/job/gradle-check/20753

Expected behavior
Tests should pass.

Plugins
Please list all plugins currently enabled.

Screenshots
If applicable, add screenshots to help explain your problem.

Host/Environment (please complete the following information):

• OS: [e.g. iOS]
• Version [e.g. 22]

Additional context
Add any other context about the problem here.

[ashking94]

Reproducible on main with -

./gradlew ':server:test' --tests "org.opensearch.repositories.blobstore.BlobStoreRepositoryTests.testRetrieveShallowCopySnapshotCase1" -Dtests.seed=F6DEB85546834F2C -Dtests.security.manager=true -Dtests.jvm.argline="-XX:TieredStopAtLevel=1 -XX:ReservedCodeCacheSize=64m" -Dtests.locale=no-NO -Dtests.timezone=Antarctica/Rothera -Druntime.java=20

[linuxpi]

Looks like this flakyness is introduced with #8719

We mandated use of translog enabled remote indices, earlier these tests were just using segment store enabled remote indices