Standardize the unsupported plugins behavior or document.

[mashhurs]

Description

elastic_integration plugin doesn't support set_security_user, inference and enrich so far (not limited to). And when they appear in ingest pipeline definitions, Logstash's execution behavior is slightly different. For example, with set_security_user processor, Logstash doesn't complain/warn/error and/or even tag the event with _ingest_pipeline_failure, executes with silence.
However, with rest of processors (inference and enrich), Logstash tags the event with _ingest_pipeline_failure and errors in the logs that processor is not supported.
IMHO, we need to make a same behavior for all unsupported processors or document current behavior for each unsupported processor.