Create deprecation logs data stream by default

[sabarasaba]

In the Kibana Upgrade Assistant overview page, we would like to show the users a link to the Discovery app. In order to do so we need to create an index pattern first and it's not currently supported to do so for an inexistent index.

I would like to propose that instead of creating the deprecation logs data stream the first time a document is indexed that its created by ES on startup if the indexing of deprecation logs is enabled (which will soon be enabled by default elastic/elasticsearch#76292).

/cc @pugnascotia

[sabarasaba]

Closing in favour of elastic/elasticsearch#76802