[DOC]Modify stats api documentation to reflect addition of segment replication statistics

[Poojita-Raj]

What do you want to do?

• Request a change to existing documentation
• Add new documentation
• Report a technical problem with the documentation
• Other

Tell us about your request. Provide a summary of the request and all versions that are affected.

Changes requested:

1. Under list of index properties in this table (holding list of properties for index statistics for each shard), we need to add the following rows:
   Link: https://opensearch.org/docs/latest/api-reference/nodes-apis/nodes-stats/#indices

Field	Field type	Description
segments.segment_replication	Object	Segment replication statistics for all primary shards with segment replication enabled that exist on the node.
segments.segment_replication.maxBytesBehind	long	The max number of bytes behind the primary a replica is.
segments.segment_replication.totalBytesBehind	long	The total number of bytes behind the primary the replicas are.
segments.segment_replication.maxReplicationLag	long	The max time (in milliseconds) taken by a replica to catch up to primary.

What other resources are available? Provide links to related issues, POCs, steps for testing, etc.
PR: opensearch-project/OpenSearch#9709
Issue: opensearch-project/OpenSearch#9417

[Naarcha-AWS]

Moved this to Pr #4995