BulkProcessor shouldn't indefinitely retry on client side (4xx) errors

[ArsalanKhairani]

Which version of Elastic are you using?

[ ] elastic.v7 (for Elasticsearch 7.x)
[x] elastic.v6 (for Elasticsearch 6.x)
[ ] elastic.v5 (for Elasticsearch 5.x)
[ ] elastic.v3 (for Elasticsearch 2.x)
[ ] elastic.v2 (for Elasticsearch 1.x)

Please describe the expected behavior

In case of any client side error from ES, bulk processor shouldn't retry that request.

Please describe the actual behavior

It's retrying forever for all the errors.

Any steps to reproduce the behavior?

Generate a very large doc (> 10MB), it can cause 413 on AWS hosted ES.