feat(elasticsearch): add retry_on_conflict option on output

[defgenx]

Description

This introduces the RetryOnConflict option to the Elasticsearch output configuration. This option allows users to specify the number of times an update or upsert should be retried in the case of a version conflict.
This feature is useful for scenarios where multiple clients might be updating the same document concurrently, and version conflicts are expected.

Change(s)

• Added RetryOnConflict field to the Elasticsearch output configuration.

Testing

• I didn't see any unit tests for this connector so I'm not sure how we could test it as it is.

Issue(s)

• Add support for retry_on_conflict in elasticsearch output module. #3146

[CLAassistant]

All committers have signed the CLA.

[nept]

Great addition for the elasticsearch configuration! 👌

[mihaitodor]

LGTM, thank you!