Fix table in S3 documentation (#6810)

Signed-off-by: Naarcha-AWS <[email protected]>

_data-prepper/pipelines/configuration/sinks/opensearch.md

@@ -91,7 +91,6 @@ Option | Required | Type | Description
 `document_root_key` | No | String  | The key in the event that will be used as the root in the document. The default is the root of the event. If the key does not exist, then the entire event is written as the document. If `document_root_key` is of a basic value type, such as a string or integer, then the document will have a structure of `{"data": <value of the document_root_key>}`.
 `serverless` | No | Boolean | Determines whether the OpenSearch backend is Amazon OpenSearch Serverless. Set this value to `true` when the destination for the `opensearch` sink is an Amazon OpenSearch Serverless collection. Default is `false`.
 `serverless_options` | No | Object | The network configuration options available when the backend of the `opensearch` sink is set to Amazon OpenSearch Serverless. For more information, see [Serverless options](#serverless-options).
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 ## aws