Corrected setting name for max_slice_count

[martin-gaievski]

Description

Need to correct setting name for recently added runner EnableConcurrentSegmentSearch. As per documentation correct setting name is search.concurrent.max_slice_count. With current setting name the runner and calling operation will fail.

Original PR #591

Testing

• New functionality includes testing

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[peterzhuamazon]

Hi @martin-gaievski please rebase your changes with main branch.
We recently add a new workflow to test benchmark docker builds.

Thanks.

[martin-gaievski]

Hi @martin-gaievski please rebase your changes with main branch. We recently add a new workflow to test benchmark docker builds.

Thanks.

thanks Peter, rebased my branch to main