[BUG] Issue in Eventdata / transform test procedure

[acidul]

What is the bug?

Running "transform" test procedure of "eventdata" workload fails during delete-transform-group-by-terms step :

Running delete-index [100% done]
Running create-index [100% done]
Running check-cluster-health [100% done]
Running index-append [100% done]
Running force-merge [100% done]
Running wait-until-merges-finish [100% done]
Running delete-transform-group-by-terms [ 0% done]
Running delete-transform-group-by-terms [ 0% done]
[ERROR] Cannot execute-test. Error in load generator [0]
Cannot run task [delete-transform-group-by-terms]: 'request_start'

How can one reproduce the bug?

opensearch-benchmark execute-test --workload eventdata --test-procedure=transform --pipeline=benchmark-only --target-host=http://target-host:9200 --on-error="abort"

What is the expected behavior?

Get all steps running fine

What is your host/environment?

opensearch-benchmark 1.1.0 running in docker (opensearchproject/opensearch-benchmark:latest)
opensearch cluster (host target) version is 2.10.0 running in virtual machines

[gkamat]

Was able to reproduce this. This needs to be fixed.

[IanHoang]

Will need to rerun this test to see if issue still persists.

[IanHoang]

@OVI3D0 identified root cause: opensearch-project/opensearch-benchmark#714

Will need to contribute API change