The NewSErverEventSubscriber is running on none RAG actions

Problem/Motivation

Currently we have a NewServerEventSubscriber, that listens to the crud of creating a search api server, to make sure that it creates collections if they do not exist.

The problem with this one is that it does not actually check if they are AI search backend and tries to applly its logic on any conifiguration.

Steps to reproduce (required for bugs, but not feature requests)

Try to install a Search API Server that is a normal Solr, Elasticsearch etc. server.
Check the warning.

Proposed resolution

Make sure its warning free.